Here’s a pdf of the Racial Justice Project’s amicus brief on behalf of Congressman John Lewis. My research with Prof. Michael Herron is cited on pp. 32-33, clipped below.

For the 2012 general election, only thirty-two of Florida’s sixty-seven counties, including the five counties covered by Section 5, offered the maximum ninety-six hours of early voting hours permitted under the new law. Minority voters again took advantage of the extra time to cast their votes. While African Americans made up less than 14% of Florida’s registered voters in 2012, they made up more than 22% of the early voter electorate on each day of the 2012 early voting period. Herron & Smith, at 11. However, because there was a reduction in the total number of early voting hours and days in 2012, including the elimination of the Sunday immediately before Election Day, there were fewer opportunities for minorities to vote early. In Miami-Dade and Palm Beach counties, voters stood in line to cast early votes for more than five hours during the weekend before Election Day. Id. at 20. In those two counties, African Americans made up only 16.7% of registered voters, but accounted for 43.8% of the early voters on Sunday, November 4, 2012. Id. at 21. The data tell the story. There is simply no question that without Section 5, a disproportionate number of minority voters in Florida would have been deterred from exercising their right to vote in 2012.