The swing states especially Florida, Ohio and Virginia will hold the key as Americans decide whether they'll have a different 45th president.
Whoever the winner, the current counting trend shows that the elected president be it President Barack Obama or Republican Mitt Romney will face a divided Congress. In other words, passing any important legislation will not be easy.
Presidential electors, who will officially elect the president and the vice president of the United States on December 17, 2012, will be chosen.
What if there is a tie?
If there is a tie amongst the electoral votes or if no candidate receives the minimum number of electoral votes needed to win the election, the United States House of Representatives will choose the President, and the United States Senate will choose the Vice President.