President Barack Obama holds up a proposed mortgage application form as he speaks at the James Lee Community Center in Falls Church, Va., Wednesday, Feb. 1, 2012. (AP Photo/Cliff Owen)
Republican presidential hopeful Mitt Romney claimed victory in the Florida primary Tuesday, but a closer look at the numbers suggests the former governor could struggle there against President Obama in a general election. (Associated Press)
**FILE** President Obama, a 2009 Nobel Peace Prize laureate, poses Dec. 10, 2009, with his medal and diploma at the prize ceremony at City Hall in Oslo. (Associated Press)
President Obama, in an appearance at the James Lee Community Center in Falls Church, Va., on Wednesday, Feb. 1, 2012, details his proposal that would allow millions of "underwater" borrowers to refinance home loans. (AP Photo/Susan Walsh)
** FILE ** President Barack Obama, sitting next to Defense Secretary Leon Panetta, right, speaks during a cabinet meeting in the Cabinet Room of the White House in Washington, Tuesday, Jan. 31, 2012. (AP Photo/Susan Walsh)
President Obama sits Jan., 31, 2012, inside a Chevrolet Corvette ZR1 during his visit to the Washington Auto Show at the Washington Convention Center in Washington. (Associated Press)
President Obama, sitting next to Defense Secretary Leon Panetta (center) and Transportation Secretary Raymond LaHood (right), speaks Jan. 31, 2012, during a cabinet meeting at the White House. (Associated Press)
President Barack Obama greets supporters after his speech at the University of Michigan in Ann Arbor, Mich., Friday, Jan. 27, 2012. (AP Photo/Carlos Osorio)
President Barack Obama waves as he walks off of Marine One on the South Lawn of the White House in Washington, Friday, Jan. 27, 2012. (AP Photo/Susan Walsh)
** FILE ** Vice President Joe Biden gives a thumbs-up before President Barack Obama's State of the Union address in front of a joint session of Congress Tuesday, Jan. 24, 2012, at the Capitol in Washington. (AP Photo/Saul Loeb, Pool)
President Barack Obama speaks at the University of Michigan's Al Glick Field House, Friday, Jan. 27, 2012, in Ann Arbor, Mich. (AP Photo/Carlos Osorio)
Arizona Gov. Jan Brewer makes a point to President Obama upon his arrival Wednesday at Phoenix-Mesa Gateway Airport. Mrs. Brewer said he took issue with a passage in her book that described an encounter in an unflattering manner. (Associated Press)
President Obama turns to wave Jan. 26, 2012, as he boards Air Force One departing Las Vegas after spending the night. He spoke about energy innovations and promoted alternative fuels that day at a United Parcel Service hub in Las Vegas (Associated Press)
President Obama is greeted Jan. 25, 2012, at the Conveyor Engineering & Manufacturing plant in Cedar Rapids, Iowa, after speaking about manufacturing jobs. (Associated Press)