Ohio is the must-win state for both President Obama and former Governor Romney. Although early voting results won't be counted until Tuesday, the latest polls indicate a lead for the president in Ohio.

Four years ago, Obama had a large lead against McCain coming out of early voting. This year, Obama's advantage isn't big. Romney's campaign hopes to close the gap in these swing states when voters go to vote on Tuesday.

According to Real Clear Politics, Obama leads Romney by 2.8 percent in Ohio, at 49.3 percent voter support to the Governor's 46.4 percent. Other polls give the president a two to four percent lead. NBC/WSJ/Marist poll displays that largest Obama lead, placing the president 6 percent ahead of Romney's 45 percent voter support. Rasmussen polls show a tie at 49 percent.

Florida however is a mixed story. Several polls show Romney in the lead, including Rasmussen Reports, which places Romney at 50 percent and the president at 48 percent. CNN/Opinion Research and WeAskAmerica each give Romney a 1 percent lead. However PPP and CBS/NYT/Quinnipiac both give the president a 1 percent lead, and the NBC/WSJ/Marist poll puts Obama 2 percent ahead of Romney.

More than 27 million Americans have voted in 34 states and District of Columbia. According to Politico, party affiliations for several key states have been released.

Ohio
Votes: 1.6 million
Democrats: 29 percent
Republicans: 23 percent

Florida
Votes: 3.9 million
Democrats: 43 percent
Republicans: 40 percent