U.S. Sen. Tom Coburn, Barack Obama form unlikely friendship

U.S. President Barack Obama hugs Senator Tom Coburn, R-Oklahoma, as he greets members of the U.S. Congress after addressing a joint meeting of the two legislative houses February 24, 2009 at the U.S. Capitol in Washington, DC. In his remarks Obama was expected to address the topics of the struggling U.S. economy, the budget deficit, and health care. (Photo by Chip Somodevilla/Getty Images)