Berkeley Researchers Analyze Florida Voting Patterns 1237
empraptor writes "Researchers at UC Berkeley have crunched numbers and determined that 130,000-260,000 excess votes went to Bush in Florida. They have held a conference and posted their findings online. You can find articles on their research from CNet, Wired News, and many other sources. While the research used statistical analysis based on past elections and demographics, how else do you verify that a paperless voting system is working properly?"
Two things (Score:3, Interesting)
B. They performed the same study on Ohio and found no irregularities.
Ohio would be better (Score:3, Interesting)
I really do think that Florida went to Bush.
The question is Ohio. It has been a stuanch Democrat state. It lost 10's of thousands of jobs under Bush. And it voted for him in a close election? So why are these researchers looking at Florida?
A legal question (Score:2, Interesting)
Re:Is there a choice of what to vote with? (Score:4, Interesting)
The trouble with voting security is that it requires authentication, anonymity and ability to verify later. The verification necessarily must be done by the voter himself, or else somebody else will know how you voted.
Here's my idea: after you vote, you get a random ID and password associated with your vote. Later, you can log onto a website and verify that your vote is as you cast it, without divulging your identity. Make the process for getting votes from the machine to the central data repository open-sourced, open, open open, totally so that we know exactly what is happening.
Hey, it's a start. But I'm in favor of these voting machines. Let's not throw the baby out with the bathwater.
Re:Paper trail not enough (Score:3, Interesting)
A letter I sent to the Washington Post (Score:4, Interesting)
re: In ATMs, Not Votes, We Trust
http://www.washingtonpost.com/wp-dyn/artic
I'm a programmer a major corporate bank in Manhattan.
Anne Applebaum's analogy of e-voting to ATM and credit card banking was misleading and uninformed.
Users receive regular bank statements, with each ATM transaction itemized.
Cross-checks of all transactions can be validated by the user through this method or
at any time with a phone call or with web access.
This is a paper trail.
For a credit card, it's the same deal, of course.
Again, there is a paper trail.
Increasingly e-voting machines have no paper trail requirement.
This is highly troubling.
Anne seemed to label this as "conspiracy", but it is no such thing.
To say so is irresponsible.
There is no way for the individual to verify that their vote was counted as they registered it, as you
can at an ATM, with or without a receipt. Do you find this troubling? I do.
This is just one short-coming in the system, among many.
As a computer programmer and security expert, I know how easily computers can be manipulated.
It is a fact that the coding on these machines could literally do anything.
We're irresponsibly putting our votes into a black box, and don't even have an audit trail.
This issue has nothing to do with whether fraud occurred in this particular election or not.
Glitches frequently occur due to human and machine errors.
An audit trail is a minimum necessary requirement -
And this is just the beginning of the problems with e-voting as currently implemented.
I'm surprised that the Washington Post allowed such a flimsy analysis to be published.
It's not a gap at all (Score:3, Interesting)
If you want to think those votes are ghost votes (perhaps they would have gone for Nader) then subtract 130,000 from Bush. If you want to think those votes should have gone to Kerry than subtract 130,000 from Bush and add 130,000 to Kerry.
If you don't buy into their statistical modeling, then don't do anything. But isn't it curious that the largest disparity between expected and actual e-voting results occurred in heavily democratic counties?
Re:Two things (Score:5, Interesting)
They neglect to factor in the "Hurricane effect." The President's visits and aid raised him popularity in the area.
From glancing at the numbers, I think you are wrong. Why would a hurricane, cause there to be more discrepancy between who people said they voted for, coming out of the polls, and who actually was given the votes? You are looking for explanations, and there is nothing wrong with that, but I don't think the one you give makes any sense. The only sort of things I can think of, that might account for such a discrepancy, are people not wanting to admit, to people doing polling, who it was they voted for. Perhaps if the persons polled felt intimidated, or ashamed of their votes. Even that, however, is really iffy. I think technical errors, or voter fraud, are the most likely culprits for this statistical anomaly.
Testing... (Score:3, Interesting)
Uh, run a test? Before the election, vote for Kerry 50 times. Vote for Bush 50 times. Tally the results. If it's not 50 and 50, something is jacked up. It doesn't seem to be rocket science to me.
Re:Paper trail not enough (Score:4, Interesting)
In a "paper trail" situation, the receipt is the ballot! The only purpose of the machine is to give the people who can't punch a hole properly a chance to have their vote count, and maybe you can plug all the machines in at the end and get a quick count, but in the end if something smells fishy, you pull those paper ballots out.
If the machine recorded a vote for A and printed out a vote for B, then this would be caught either when A wins by an unexpected landslide, or by chance by random sampling.
Re:Some thoughts (Score:3, Interesting)
In many respects I think the bottom line here is accountability. The problem therein is that you can't please all the people all of the time. You also not create a fraud free system, as we know with the hacker culture, rules/systems/processes/et al. are meant to be bent and sometimes broken, and anyone who has the desire to attack the system can do so with enough effort.
I do find it very ironic that we have two distinct crowds, largely both in the Democrat leaning arena which desire to challenge the election results. There are those who want to challenge the electronic voting and those who want to challenge the paper voting. Each group implies the other system is the better system. You can't have it both ways.
No one likes to loose, and I'm not trying to rub a nose is someone's defeat. There are a many people out there who supported Kerry and who have just as deep convictions for his agenda as I do for Bush's. An old coach of mine used to say loosing builds muscle (because after a loss he'd basically kill us with PT) and character (because it should teach you to have dignity in your loss and to make sure you work hard enough not to loose the next time). I sincerely hope for the Democratic party that this election loss does both.
And How About Mechanical Voting Machines? (Score:5, Interesting)
What I don't like about paper audit trails in electronic voting machines is that everyone thinks they should be printed out in real time, like a cash register receipt at the grocery store as each item (voter) goes past. That makes it rather simple to match up voters to their votes if someone wished, and remove all the protections of the secret ballot process. Are you concerned?
And I do find it curious that voting machines are only being questioned in states that Republicans have won. Don't you?
Re:Two things (Score:5, Interesting)
In this case the exit polls showed that people were voting for Kerry but the counts showed otherwise.
Now what? How do we know which is true?
You know what the sad thing is? The sad thing is that we even have to ask that question. I for one don't trust the machines or the voting process, I am not the only one either. That's sad.
Re:Paper trail not enough (Score:3, Interesting)
1. Put the software on bootable CDs.
2. Ship an excessive number of CDs to each polling location.
3. Boot the machines using CDs choosen by random voters.
4. Allow voters to take home and verify the excess CDs
Thi s story just got hotter (Score:2, Interesting)
Re:Two things (Score:2, Interesting)
No self respecting scientist would state such an absurdly strong conclusion based on a simple correlation. At most, it could be claimed that there was a correlation between the use of electronic voting machines and Bush's margin.
The authors go on to show that Bush's percentage increased most over 2000 in the heavily Democratic counties. In other words, Republican counties stayed loyal to Bush, and he picked up some votes in Democratic counties. What's surprising about that? That's the nature of elections. People make choices that are often different from the way they voted last time or their party affiliation. That's why we have elections instead of just counting the number of voters registered to each party.
Re:Paper trail not enough (Score:3, Interesting)
Re:Paper trail not enough (Score:5, Interesting)
The REAL question is why are there electronic voting machines that DON'T have a paper trail?
Re:Paper trail not enough (Score:4, Interesting)
> tampering with the code after it's in the machine.
You could allow each of the N parties to supply Required/(N+1) PCs to run the voting software, and the electoral commision would supply Required/N+1 PCs of its own. The software records which machine was used and a firmware hash of some kind on the voter's receipt.
Then statistical analysis could be used to determine if one or both parties are cheating; it will be easy to detect and VERY hard to do.
You could also hash the running total on the voter's receipts, along with timestamps. That might also prove to be very interesting.
Re:Paper trail not enough (Score:5, Interesting)
Re:Not good enough (Score:4, Interesting)
This is the core problem with electronic voting.
We either need to put the actual vote on paper, or make sure the machine printed votes match voter intent, or the election cannot be trusted.*
you use a machine to vote. the machine spits out a paper with your vote number into a transparent casing. you verify (if you're not lazy) that the number is the same that you chose on the machine and extract the paper with the correct number(s) and then take it into a normal ballot box. the result is computer readable and later verifyable by hand if necessary ballot(computer readable because it was computer printed).
either way, the voter should be able to verify that his vote has the right markings before going into the ballot box.
bad motives for a totally paperless ballot are way too bad to accept(too many what if's even by ACCIDENT not to mention the situations possible by intent).
Re:I'm glad this is happening. (Score:3, Interesting)
Re:Some thoughts (Score:2, Interesting)
No, no, no. Sure, some people think that the different system is better, but most people who have problems with the system do not. Even people who have a problem with electronic voting machines do not want to get rid of them, they just want to make sure that they *work*, instead of giving their vote to someone else. Paper ballots aren't too good either. When you have a candidate *surprised* about how many votes he got in a country, and many people say they accidentally voted for that candidate, you can't say they're just trying to change their vote, there really *was* a problem.
The discrepency is the issue (Score:1, Interesting)
1) There was something fishy about the election results -- this seems to be the assumption behind the investigation, the researchers wanted to find something and they found it.
2) The statistical model is invalid -- There may be other factors that weren't considered, this is where peer review would help.
3) The data is poor -- The data in this case being previous election results and results from non-electonic voting precincts. So it is possible (though probably not likely) that it could be the other counties where something isn't quite right.
Re:OK, then why have the voting machines at all? (Score:2, Interesting)
I think the main legit advantage of electronic voting is accessibility. See Electronic Voting - Overview and Issues [berkeley.edu].
A Quote:
Re:Is there a choice of what to vote with? (Score:5, Interesting)
Smoking Too Much Crack in Berkeley (Score:5, Interesting)
Here's what he found:
Re:And How About Mechanical Voting Machines? (Score:3, Interesting)
Those should have paper trails too.
The most common method I've seen suggested is this;
Each machine prints out an audit slip which the voter is allowed to examine, and then the voter drops it the audit box.
How exactly were you planning on matching the audit slips to the voters?
It's human nature to only question things when they turn out they way you don't want.
That means the democrats only question the republican's victories, and the republicans only question the democrat's victories.
But most of slashdot has been questioning the Diebold voting machines in general, not any election in particular.
-- should you believe authority without question?
Re:Bravo (Score:3, Interesting)
Objection: assumes facts not in evidence.
Bush won.
Not yet.
(I didn't vote for Bush.) Get over it.
Read the latest news regarding Florida machinations [blackboxvoting.org].
Re:And How About Mechanical Voting Machines? (Score:1, Interesting)
What would the motavation be to to defraud 'conservative votes' in NYC? New York was not in play, the Republicans have NO chance of winning NY in a presidential election (unless of coarse Gulianni runs in 08, which would be interesting).
Why would the Democrats, or someone working on their behalf, even bother to disenfranchise Republicans in NYC? That would be like Democrats cheating the Republicans out of a few votes in Alabama. Not going to make a difference.
Not that I would put the Democratic Party above fraud, but if they were going to do it, wouldn't they do it in Ohio or Florida, where it might actually help them?
Re:Kerry Could still Win...sort of. (Score:2, Interesting)
Bush wins by 400,000
subtract (possibly) 260,000
Now he's only 140,000 ahead...
Add those 260,000 votes to Kerry's tally...
and you have Kerry winning the state by 120,000 votes.
So... if this analysis holds up under scrutiny (which I doubt it will), it definitely could have affected the election.
Re:Possible causes (Score:1, Interesting)
Anon..
Re:Paper trail not enough (Score:3, Interesting)
Re:UC Berkeley (Score:3, Interesting)
LS
Re:Paper trail not enough (Score:5, Interesting)
I have been a scrutineer at the past two Canadian federal elections, and the parent is correct. There were 2-4 people counting votes from each of six ballot boxes. We had everything counted, recounted, and called in 20 minutes after the polls closed. Technology is great, but it does not need to replace everything.
Georgia's not such a hot example for your point (Score:3, Interesting)
Exploiting flaws is possible, as well (Score:3, Interesting)
Re:Paper trail not enough (Score:3, Interesting)
I don't know if Diebold has changed their system since, but I can't believe that Diebold has been claiming that the software used for voting machines is proprietary and secure. Without MS access, it makes absolutely no use.
Got democracy?
Vote Fraud Smoking Gun (Score:5, Interesting)
It is already certain that vote fraud occured in an alarming number of isolated cases. The only question now is if it occured and went undetected in enough places to actually swing the election. Here are a few of the things we already know for certain:
In several districts, electronic voting machines were preloaded with thousands of votes for Bush before the election started. Where it was discovered, the machines were reset and did not effect the outcome. The question is, in how many districts did this go undetected because voter protection advocates were not there to check the machines.
In at least one case, a location in which only about 600 people voted recorded over 4000 votes for Bush. No explanation has been given for this, though it is likely another example of 'pre-loaded' machines.
In at least one local election, a manual recount of the ballots swung the vote total by a large amount compared to what the electronic vote machines had reported, enough to move the winner from the republican candidate to the democrat.
But the biggest smoking gun [commondreams.org] is in Florida's Volusia county where election offitials were caught red handed throwing out the official signed poll tapes from Nov 2nd. When these tapes were compared to the reported vote numbers, they showed that votes had been added to Bush's total IN EVERY SINGLE PRECINCT EXAMINED. If this was done in many more Florida precincts, it could explain the eight point swing between the exit polls showing Kerry winning and the official tally showing a Bush win. We must at least acknowledge the possibility, and insist on a full audit of the Florida results... not just a recount done by the same Florida partisans, but full, impartial audit.
About Daschle, from a South Dakotan (Score:2, Interesting)
I happen to live and vote in South Dakota, and while I don't like the Diebold machines any more than most people on Slashdot, you cannot blame Daschle's loss to them. (well you could, but you'd be wrong) Guess what we used for voting? Good old number 2 pencils and paper. They showed the counting machines on the news the night of the elections and they're essentially the same type of machines that ACT uses to score results on their tests. The precincts send their paper ballots in to the central counting location (in my case the county courthouse), the workers put the ballots in the counter, and voila! As for Daschle losing, I can't explain that one to you. You'd have to ask the other voters...
Re:Smoking Too Much Crack in Berkeley (Score:3, Interesting)
The survey proves a statistically significant correlation between Democratic support in certain counties (votes for Gore in 2000, Kerry in 2004), Republican support in certain counties (Bush votes in 2000 and 2004), and touch-screen machines.
Ruffini tries to disprove the finding by averaging the votes by county and technological prowess; which averaging doesn't disprove the correlation.
The finding is significant in that the predicted totals for Bush in Broward, Miami-Dade and Palm Beach counties are lower then actual values.
Here is the question Ruffini dodges: if the model is correct for the 2000 cycle, why is that same model wrong for the 2004 cycle?
Re:Ohio numbers don't match (Score:3, Interesting)
I copy-pasted the numbers from that page and ran a simple query against them. In most counties, the turnout was less than the number of registered voters, but there are 30 accounting for 97,489 mystery voters -- more votes were counted in those precincts than there are registered voters.
This isn't just a matter of absentee ballots being put in the wrong category, nor is it minor double-counting of ballots. Here are a few excerpts (check 'em yourself! [cuyahogacounty.us])
HIGHLAND HILLS VIL has 760 registered voters, yet counted 8822 votes, for an overage of 8062 votes, or a 1161% voter turnout rate.
WOODMERE VIL has 558 registered voters, yet counted 8854 votes, for an overage of 8296 votes, or a 1587% voter turnout rate.
Note that I'm only looking at the cases where num_votes > num_voters. If you plot the voter turnout percentages, MANY more precincts show an abnormally high turnout rate, just less than 100%.
Now I'm off to see if Colorado posts the same raw numbers online.
--
Re:Smoking Too Much Crack in Berkeley (Score:5, Interesting)
The change in Bush % of vote from non-evoting counties ranges from -11.5% to +10.7%. For e-voting counties it ranges from -6.4% to +7.4%. If you look down each list (evoting and non-evoting) from change in percent, there is little difference whether it was a democratic or republican voting county, they're scattered.
If you want to look at something strange, look at Cuyahoga county, Ohio. This county had 218,000 FEWER voters than in the 2000 election. That's in a record turnout year with only one other county in the list losing votes (Franklin, OH lost 9,486 out of the 519,255 they had in 2000). That's 108,000 fewer votes for Bush than in 2000 and 111,000 fewer votes for the democrats. Not a big shift in the election, but very strange nonetheless.
Paper trail is hangin' out Tom DeLay's @$$ (Score:5, Interesting)
Here is a test. Next 4 years, we can choose our companies to build the machines and to count the numbers. Michael Moore, and George Sourros will head the companies. Does that make you feel comfortable? Don't complain if somehow Barbara Streisand wins California, You just have to Move On.
Oh. and just because you can site an example where the Republicans didn't win, when they've had a great showing of blithering failures (oh, the economy, pollution, the rising cost of healthcare + anything else I'd bother to mention), does not mean that they didn't try to cheat.
The Libertarian you mention may actually be pushing the same NeoCon agenda that has worked so well for Mexico. I don't want to get into that debate, but having been a Libertarian and a Republican for I while, I had to leave because their economic concepts were not sustainable, and the Dems looked the least evil by a smidgen.
But I also live in Georgia, which is the Belt Buckle of the Bible Belt, so no amount of self interest or reality will outweigh a good rhetorical moralizer. And the ignorance of people listening to Neal Bortz and nodding to his ideas of a Value Added Tax are making me want to retch.
By the way, some months ago, the president of DieBold publicly stated that he would do everything in his power to see that President Bush was re-elected.
Can you not admit, that a system where elected officials approve the budgets for private corporations who control who gets elected IS a system that is bound to be corrupted? What are we paying for these boxes anyway? About $100k a piece? Doesn't that mean that most of the expense is for "services rendered".
And note, that in 2000, the Florida Government payed the people who conducted the voting about 10 times as much as 4 years before. The number of rejected voters went from about 8,000 to over 90,000. It has now been verified, that many of the people who were rejected was unwarranted (and of course, mostly from Democratic voters). I could point to a number of articles discussing this, but you would not be convinced.
Why are people so dead set against an idea of a "conspiracy." It is damn well profitable to have a president give taxpayer money to corporations. It is worth Billions. And we have many examples of overpaid contracts to look at. There are all sorts of conspiracies. But it seems that anyone pointing it out is automatically a nut. So what does anyone do about a conspiracy? Hand the crooks the keys and hope they run over a school bus full of kids on prime time news so that we can be sure they are the bad guys?
I'll say it. I think the Bush administration is a bunch of crooks. They behave like crooks. They act like crooks. They want everything secret and they punish anyone who criticizes them. They were conveniently incompetent on 9/11 and it has done nothing but give them a green light to push through their agenda. They have pandered to just about every corporate supporter, in historically cynical ways. They have lied and said Iraq was an immanent threat. Oops. Now we must forgive them because it is a tough job. Meanwhile, Billions of dollars of taxpayer money are going to companies owned by the Carlyle group, which has financial dealings with almost all of the Bush administration (Halliburton ain't half of it). And we are supposed to shrug that off because it's only coincidence that it's their pockets the money lands in "hey, it could happen to anyone".
Wow, the energy bill even indemnifies oil companies from lawsuits they might incur over gasoline additives. OK. The future looks bright. King George will start the "No two-headed baby left behind" program. Retraining as a circus freak can help a large portion of the genetically damaged. Good thing they can't sue.
And all 5 of the electronic voting companies have been major donators to the Reelect Bush fund.
This statement; f
Diebold states (Score:3, Interesting)
Re:Vote Fraud Smoking Gun (Score:2, Interesting)
Look, I voted for Kerry, and was not too pleased that Bush won, but I believed that he did. He won the popular vote by 3 million, and the electoral college by more than 30. I don't think that 3 million votes in favor of Kerry could have been stolen by crooked voting machines, as in my view and the view of the parent, fraud going for Kerry was just as prevalent. Better luck in 4 years.
Anyway, Bush won Florida by a pretty decent majority. ABC News dispelled a concern that many people had with a Floridian county (I forget which one) in which there were more registered Democrats that Republicans, but the county went for Bush. However, that county has voted Republican for the past 6 presidential elections or so.
Berkeley's facts may have been "right," but it doesn't mean they were accurate.
Let's give it up, Kerry lost and Bush won. Yes there were most likely cases of fraud, but overall, they probably cancelled each other out for the most part.
Re:Vote Fraud Smoking Gun (Score:3, Interesting)
I think you are missing the point that the manufactures of the voting machines are all strong republican backers, and the two main swing states, Florida and Ohio, both have partisan republicans running the vote counting process. The Democrats would not even have the opportunity to rig the vote in any significant way in those states.
If you have not checked out the article I referenced earlier [commondreams.org] I really recommend it. It points to potential 'systemic' fraud that could add up to many hundreds of thousands of votes in florida alone. Repeat the tactic in a bunch of non-swing states just to pad the popular vote... and you have a recipe for a stolen election.
It helps when over third of the population is voting on touchscreen voting machines with no paper trail, particularly when they are manufactured by a company with strong republican ties, and a history of fraud and criminal activity.
I am not saying that it definetely happed, just that it is not impossible, and that the early signs of fraud are enough to justify further investigation. We are talking about the fundimental underpinnings of our democracy here. I say that is worth a little extra digging just be sure. The cost of being wrong is just too high.
Re:Paper trail not enough (Score:5, Interesting)
They are still remarkably accurate -- if done for elections held anywhere but in the U.S. Magic.
And if exit polls no longer work, statistically the variant outcomes should scatter for Bush and Kerry roughly equally. They do not. They all skewed way, in some cases REALLY WAY, over to Bush.
And something is definitely wrong. Check Bev Harris's work these past few days. In Florida, she was issued unsigned audit tapes in response to her requests for evidence after the election, rather than the signed and verified ones.
After being denied the originals, she actually found them in the TRASH. Police were called to stop her, but she got the tapes.
Kids, they compared the unsigned results to the actual, disposed-of results from the dumpster.
The copies she was given do not match the originals. The vote was way, way adjusted for Bush. In. Every. Case.
She won't make the conclusion outright, but it's obvious. Where Jeb could cheat, he did. Mygod, how could he NOT cheat??
Re:Vote Fraud Smoking Gun (Score:4, Interesting)
Ocam's razor would suggest the former, at least if you limit yourself to just the data under consideration.
But when you start looking deeper the water gets muddier. There are accusations of election fraud in Florida dating back at least to 1959 (the Dade County "Metro" vote) and a whole host of election-and-budget related corruption scandals even before that). There have been numerous convictions, but mostly of "bag man" level people. Most of the Watergate burglers (the "cubans") were from Miami. And so on, and so on. There seems to be a fairly well documented pattern of misconduct involving Republicans + Cuba + CIA + mafia + Florida that runs back into antiquity.
So, thinking about it, I'm not so sure what to assume about the last six presidential elections.
-- MarkusQ
Work properly, no. Steal Properly, yes. (Score:4, Interesting)
Long Answer: The purpose of electronic voting machines is not to provide an inexpensive election - paper ballots counted by hand are the cheapest way to run a secret election - nor is it to provide a guaranteed accurate election - paper ballots with check marks are the gold standard for proof of who voted for whom - but to allow undetectable election fraud. Any election without a real-time unchangeable audit trail - which means a paper log of every vote generated at the same time as voting is done - should be presumed to be intentionally fraudulent.
Back in 1966, Robert A. Heinlein gave the exact formula in The Moon is a Harsh Mistress [amazon.com] for stealing an election without the public realizing they'd been robbed: have all the votes collected by computer where there is no audit trail and no way to prove the validity of the actual vote versus what is recorded.
And what do electronic voting machines give us? A voting system collected by computer where there is no audit trail and no way to prove the validity of the actual vote versus what is recorded. Why should it surprise anyone that the voting machines are inaccurate; they're intended to efficiently steal elections in a concealed fashion, not necessarily to efficiently count them.
Let's not forget that the head of one of the companies that sell electronic voting machines said that they intended to make sure they got Ohio for a specific candidate in the 2004 election. (No candidate has ever won the presidency without Ohio.)
Has anyone here considered that since it takes 270 electors to win, all that one needs to get elected President is 11 states?
- California.... 55
- Texas......... 34
- New York...... 31
- Florida....... 27
- Illinois...... 21
- Pennsylvania.. 21
- Ohio.......... 20
- Michigan...... 17
- New Jersey.... 15
- North Carolina 15
- Georgia....... 15
- -------------
- Total........ 271
Get (or steal) these 11 states and you can forget the other 39.Re:Smoking Too Much Crack in Berkeley (Score:5, Interesting)
http://www.patrickruffini.com/bio.php [patrickruffini.com]
Not impressive (Score:3, Interesting)
The figures look nice, until your eyes stray to the R-square (goodness of fit) results for their regressions - it's about
More formally, R-square is the percentage of sample variation in the dependent variable that is explained by the independent variables. So, in this study, they can generally explain about 50% of the variation - which is not exactly what I'd want to take to court.
In fairness to the researchers, R-square is not the end-all, be-all of proof, and
I find the willingness of people to take this as "proof" of vote fraud is disturbing. This is evidence that places that had electronic voting had more votes for Bush. This evidence is of correlation rather than causation. Maybe Bush supporters were more likely to come out in places with electronic voting?
In any case, I would also direct people to read page 4, where it points out that electronic voting in Ohio didn't cause any change in percent voting for Bush (using model 1, I believe).
-Erwos