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
Newt Gingrich along with his wife, Callista, addresses supporters at the Hilton Hotel in Columbia, S.C. following his primary victory. South Carolina voters have chosen the GOP nominee since 1980.
JEFF SINER/MCT /Landov