FILE - In this Sept 28, 2008 file photo, Xavier Rivas, a Republican activist working on John McCain's Nevada Leadership Team, looks through the window of a campaign office for then-Democratic ... more 
FILE - In this Sept 28, 2008 file photo, Xavier Rivas, a Republican activist working on John McCain's Nevada Leadership Team, looks through the window of a campaign office for then-Democratic presidential candidate Sen. Barack Obama D-Ill., in Henderson, Nev. Even without a Democratic challenger, President Barack Obama plans aggressive roles in states with early presidential primaries, especially in the 2012 battleground states of Iowa, New Hampshire and Nevada. less 
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Associated Press | Photo By Jae C. Hong, File
Wed, Apr 6, 2011 5:00 PM EDT