Voters wait to pick up their absentee ballots in Doral, Fla., on Sunday. Christina White, deputy supervisor with Miami-Dade County, said the county decided to accept absentee ballots for four hours on Sunday at its main office. An estimated 25 million voters are expected to vote early this year nationwide, the most in U.S. history. (Associated Press)

Voters wait to pick up their absentee ballots in Doral, Fla., on Sunday. Christina White, deputy supervisor with Miami-Dade County, said the county decided to accept absentee ballots for four hours on Sunday at its main office. An estimated 25 million voters are expected to vote early this year nationwide, the most in U.S. history. (Associated Press)