Defense Secretary Robert Gates talks with troops during a visit April 7 at Camp Victory in Baghdad. Chip Somodevilla/Getty Images hide caption

itoggle caption Chip Somodevilla/Getty Images

A Tea Party supporter, left, argues with a critic before a rally where former Alaska Gov. Sarah Palin spoke at the Wisconsin State Capitol in Madison on April 16. Darren Hauck/Getty Images hide caption

itoggle caption Darren Hauck/Getty Images

Demonstrators hold signs at a protest against the U.S.-Colombia Free Trade Agreement (FTA) near the White House in 2009 during a visit by then-Colombian President Alvaro Uribe. Nicholas Kamm/AFP/Getty Images hide caption

itoggle caption Nicholas Kamm/AFP/Getty Images

The Federal Reserve on Wednesday will kick off a series of regular press conferences, to be held four times a year. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Grover Norquist (left), of the anti-tax lobbying group Americans for Tax Reform, and Sen. Tom Coburn (R-OK, right) have been in an unusually public spat. Coburn, who seven years ago signed Norquist's so-called Taxpayer Protection Pledge, now says a solution to the deficit could involve an increase in tax revenues. Tim Sloan/AFP/Getty Images (Norquist photo); Chip Somodevilla/Getty Images (Coburn photo) hide caption

itoggle caption Tim Sloan/AFP/Getty Images (Norquist photo); Chip Somodevilla/Getty Images (Coburn photo)