Protesters march outside the Abraham Lincoln Presidential Hotel where Wisconsin Gov. Scott Walker is speaking to the Illinois Chamber of Commerce on April 17 in Springfield, Ill. Walker faces Democrat Tom Barrett in a recall election June 5. The events in the state over the next four weeks could be a sign of where the U.S. is headed in the months ahea
Republican presidential candidate, former U.S. Sen. Rick Santorum speaks at a campaign rally at Four Seasons Sheraton in Mars, Pa., Monday night. Rival Mitt Romney won the Washington, D.C., Maryland and Wisconsin primaries.
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After his losses in Alabama and Mississippi on Tuesday, Newt Gingrich will face increasing pressure to drop out of the GOP race. Here he waves to supporters after speaking at a rally in Hoover, Ala., on Tuesday.
Marvin Gentry /Reuters /Landov
Former Massachusetts Gov. Mitt Romney addressed supporters at a Super Tuesday rally in Boston on Tuesday. His home state was one of the six he won Tuesday night.
Jessica Rinaldi /Reuters /Landov
Jan White, left, Brenda Robertson, center, and Janet Freixas, right, count paper ballots at the headquarters of the Douglas County Republican Party Saturday in Minden, Nev., following county-wide Nevada caucus meetings.
Ted S. Warren/AP