NBC Video: Decision 2010
Watch Trump's Endorsement of Mitt Romney in 2012
Feb. 2, 2012: Real estate developer Donald Trump endorses GOP candidate Mitt Romney for president.
2010 primaries to watch
A calendar of contests in the race to Election Day 2010.
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The decade in politics
Msnbc.com's politics team takes a look at 10 moments that defined the decade.