Voter fraud is, for all intents and purposes, practically nonexistent. The best available research on the topic, by Loyola Law School professor Justin Levitt, found only 31 credible incidents of voter impersonation in an investigation of over 1 billion votes cast.
But that hasn't dampened Republican efforts to pass a spate of strict voter ID laws since 2008. And it hasn't hurt the public's overall enthusiasm for those laws, either.
But the results of a new working paper from political scientists at University of California, San Diego suggest folks may want to consider. The researchers analyzed turnout in recent elections -- between 2008 and 2012 -- in states that did and did not implement the strictest form of voter ID laws. They found that these laws consistently and significantly decreased turnout not just among traditionally Democratic-leaning groups, like blacks and Hispanics, but among Republican voters too.
The findings are notable because they're some of the first using data in elections that took place after some states implemented photo ID requirements to vote. Previous studies on the effects of these laws showed mixed results. A 2014 report by the Government Accountability Officeexamined 10 of these studies. Five showed no significant effect of voter ID laws on turnout, four found a significant decrease in turnout, and one found, paradoxically, that the laws increased turnout.
But each of these 10 studies was of general elections that took place before 2008. Most of the strictest ID laws were passed after that, so the ability of earlier research to gauge the impact of these laws is extremely limited.
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