Tennessee election officials vow to find cause of mistake after hundreds of early votes cast in wrong races

Nashville voters who cast ballots in the wrong congressional and state races will be able to submit a provisional ballot on Election Day, county election officials said.

"Now, in order to do that, some individuals may vote, instead of voting on the voting machines, you will be offered a yellow envelope that has your name on it with your specific ballot inside," Jeff Roberts, Nashville's election administrator, told the station.

Roberts said that officials will have to wait until after Tuesday to determine how voters cast their ballots in the wrong districts.