About 25 million people have already voted in 34 states and the District of Columbia, either by mail or in person. No votes will be counted until Tuesday but some key states are releasing the party affiliation of those who vote early.

Colorado

Votes: 1.5 million

Democrats: 35%

Republicans: 37%

Florida

Votes: 3.5 million

Democrats: 43%

Republicans: 40%

Early voting results 2012

Nevada

Votes: 627,000

Democrats: 44%

Republicans: 37%

Iowa

Votes: 584,000

Democrats: 43%

Republicans: 32%

North Carolina

Votes: 2.3 million

Democrats: 48%

Republicans: 32%

Ohio

Votes: 1.3 million

Democrats: 29%

Republicans: 23%