Photo by Darren Hauck/Getty ImagesSince 2011, Republican lawmakers in swing states have pushed hard for new restrictions on voting, from voter identification to new rules on early voting and ballot access. “Nine states have passed measures making it harder to vote since the beginning of 2013,” notes the New York Times, and other states “are considering mandating proof of citizenship, like a birth certificate or passport, after a federal judge recently upheld such laws passed in Arizona and Kansas.”Jamelle Bouie is a Slate staff writer covering politics, policy, and race.Voting rights advocates have attacked these laws as blatant attempts to suppress the votes of low-income and minority voters, but Republicans defend their actions as justified to protect “voter integrity” and ensure “fairness” and “uniformity” in the system. Here’s Wisconsin state Sen. Glenn Grothman on a bill—signed last week by Gov. Scott Walker—to end early voting on weekends. “Every city on election day has voting from 7 a.m. to 8 p.m. The idea that some communities should have weekend or night voting is obviously unfair,” he said. “It’s a matter of uniformity. I don’t know what all the hoopla is over,” he told Reuters.