Nevada carries six electoral votes. Mr. Obama won the state by 12.5 points in 2008, and CBS News consultant Stanley Feldman explains that Democrats are coming out in full force for him again: According CBS News early exit polling, 38 percent of voters said they think of themselves as Democrats compared to 29 percent Republican.

Updated at 5:32 p.m. AKST: CBS News projects President Obama will win Wisconsin and its 10 electoral votes, as well as New Hampshire's four electoral votes.

Mr. Obama's projected electoral vote tally now stands at 157 while Mitt Romney's stands at 153.

In 2008, Mr. Obama won Wisconsin by 13.9 percent. The state hasn't gone red in a presidential election since 1984. Even with Wisconsin Rep. Paul Ryan on the ticket, Romney faced a steep challenge in his fight for the Badger State. However, Wisconsin has been a hotbed of partisan discord in recent years and Republicans saw huge gains at the state level in 2010.

New Hampshire has just four electoral votes, but it is one of the most competitive states in the nation -- it's the only state that George W. Bush won in 2000 but lost in 2004. In 2008, Mr. Obama won the Granite State by 9.6 percent.

Updated at 5:20 p.m. AKST: CBS News projects President Obama will win Pennsylvania's 20 electoral votes, bringing his projected electoral vote tally so far to 143. Mitt Romney's projected electoral vote tally stands at 153.

Additionally, the battleground of New Hampshire is now leaning toward Mr. Obama.

Updated at 5 p.m. AKST: CBS News projects President Obama will win Michigan -- the state where Mitt Romney was born and where Romney's father served as governor. Additionally, CBS News projects the battleground of Wisconsin is leaning toward the president.

Mr. Obama is projected to win New York. His projected electoral vote tally now stands at 123.

CBS News projects Romney will win Kansas, Louisiana, Nebraska, North Dakota, South Dakota, Texas and Wyoming. His projected electoral vote tally stands at 153.

Polls have closed in the battleground state of Colorado, but CBS News cannot make any projections there at this time. Polls have also closed in Arizona and New Mexico.

The fight for Colorado's nine electoral votes has remained tight since the early stages of the 2012 general election. George W. Bush took the state in both 2000 and 2004, but with momentum coming out of the 2008 Democratic National Convention, held in Denver, then-candidate Obama claimed the mantle. He beat Sen. John McCain by 8.95 percent.