Information below provided by: wikipedia
The next United States presidential election is to be held on Tuesday, November 6, 2012. It will be the 57th quadrennial presidential election in which presidential electors, who will officially elect the president and the vice president of the United States on December 17, 2012, will be chosen. Incumbent President Barack Obama is running for a second and final term during this election. His major challenger is former Massachusetts Governor, Republican Mitt Romney. Two other candidates have attained ballot access sufficient enough to mathematically win the election by a majority of the electoral college: Gary Johnson, former New Mexico Governor who is the Libertarian Party nominee; and Jill Stein, the Green Party nominee.
As specified in the Constitution, the 2012 presidential election will coincide with the United States Senate elections where one-third of the Senators will face re-election (33 Class I seats), and the United States House of Representatives elections (which occurs biennially) to elect the members for the 113th Congress. Eleven gubernatorial elections and many elections for state legislatures will also take place at the same time.
based on the 2010 Census. Similarly ten states (Illinois, Iowa,
Louisiana, Massachusetts, Michigan, Missouri, New Jersey, New York, Ohio
and Pennsylvania) lost votes.
In the political climate of 2011, this would give the Democratic Party a net loss of six electoral votes in states won by Al Gore, John Kerry and Barack Obama
in the past three presidential elections, rendering the party a
national total of 242. Conversely, the Republican Party will achieve a
net gain of six electoral votes in states won by George W. Bush and John McCain in the past three presidential elections, rendering the Republican Party
a national total of 181. Votes allocated to remaining states (i.e.,
those where the majority voted for both Democratic and Republican
candidates during the last three presidential elections) remain
unchanged from the national total of 115.