In Pictures: Derby Day devotees, Kenyan style
Photos of the Day: Photos of the day 05/16
In Pictures: Dazzle like Beckham
In Pictures: Weather extremes 2013
Photos of the Day: Photos of the day 05/15
In Pictures: Duchess Kate's royal baby bump
Photos of the Day: Photos of the day 05/14
In Pictures: Keffiyeh is rebel chic
Republican presidential candidate, former Pennsylvania Sen. Rick Santorum, surrounded by his children, embraces his wife Karen as he enters his victory party, Jan. 3, 2012, in Johnston, Iowa. Charlie Riedel/AP
Republican presidential candidate Rick Santorum campaigns at The Daily Grind in Sioux City, Iowa, January 1, 2012. John Gress/Reuters
Barb Hansen tallies votes during a caucus of precinct 42 near Smithland, Iowa, Jan. 3, 2012. Former Massachusetts Gov. Mitt Romney, Texas Rep. Ron Paul and former Pennsylvania Sen. Rick Santorum shared the straw poll ballot with former House Speaker Newt Gingrich, Texas Gov. Rick Perry and Minnesota Rep. Michele Bachmann in a caucus race as jumbled as any in the 40 years since Iowa gained the presidential campaign lead-off position. Dave Weaver/AP
John Werden, who was elected the permanent caucus chair, reads results from six precincts that held a Republican caucus in Carroll, Iowa, on Jan. 3, 2012. Voters gave Mitt Romey 97 votes, one ahead of Newt Gingrich. Rick Santorum finished third with 76 of the nearly 400 ballots cast. The caucus was held in the local high school auditorium with a standing-room-only crowd. Jeff Storjohann/Carroll Daily Times Herald/AP
Republican presidential candidate former Pennsylvania Sen. Rick Santorum, looks over Iowa Republican presidential caucus returns with campaign staff in his hotel room, Jan. 3, 2012, in Johnston, Iowa. Charlie Riedel/AP
Former Pennsylvania Senator Rick Santorum speaks during a Presidential Lecture Series sponsored by The Family Leader, at Pella Christian High School in Pella, Iowa, May 2, 2011. Charlie Neibergall/AP
Karen Garver Santorum looks on as her husband, Republican presidential candidate Rick Santorum, campaigns at the "Rock the Caucus" Rally at Valley High School in West Des Moines, Iowa, January 3, 2012. John Gress/Reuters
Hannah Albrecht, of Le Mars, Iowa, listens to Republican presidential candidate former Pennsylvania Senator Rick Santorum speak during a campaign stop at the Daily Grind coffee shop, Jan. 1, 2012, in Sioux City, Iowa. Charlie Neibergall/AP
Republican presidential candidate Rick Santorum is surrounded by the media after a campaign stop in Des Moines, Iowa, January 3, 2012, the day of the Iowa caucus. Rick Wilking/Reuters
Republican presidential candidates (l.-r.) former Senator Rick Santorum of Pennsylvania, Texas Governor Rick Perry and former Massachusetts Governor Mitt Romney pose before the Republican Party presidential candidates debate at Drake University in Des Moines, Iowa, December 10, 2011. Jeff Haynes/Reuters
Sen. Rick Santorum (R) of Pennsylvania (r.), and Sen. Arlen Specter (R) of Pennsylvania (c.), and Pennsylvania Gov. Edward G. Rendell testify on Capitol Hill in Washington, July 7, 2005. Santorum hoped to spring a surprise showing by casting himself as the only “consistent conservative” among his GOP rivals at the Iowa presidential caucuses. Stuck at the back of the pack for months, Santorum visited every Iowa county and pressed for support from Republicans with doubts about the conservative credentials of other candidates, especially Mitt Romney and Newt Gingrich. Lawrence Jackson/AP/File
Pennsylvania Republican candidate for the Senate Rick Santorum concedes the race to Democratic challenger Bob Casey while his wife Karen (c.) consoles their daughter Sarah Marie in Pittsburgh, Pennsylvania, November 7, 2006. Jason Cohn/Reuters
President Bush and Sen. Rick Santorum (R) of Pennsylvania, wave on the tarmac upon Bush's arrival at Pittsburgh International Airport Air Reserve Station, March 24, 2006. Charles Dharapak/AP
In Pictures: Derby Day devotees, Kenyan style
Photos of the Day: Photos of the day 05/16
In Pictures: Dazzle like Beckham
In Pictures: Weather extremes 2013
Photos of the Day: Photos of the day 05/15
In Pictures: Duchess Kate's royal baby bump
Photos of the Day: Photos of the day 05/14
In Pictures: Keffiyeh is rebel chic
Rick Santorum effectively ended his campaign Tuesday, but he has gained much after doing better than pundits expected, setting himself up for a run in 2016 or 2020.
The announcement Tuesday by Rick Santorum that he is suspending his presidential campaign comes as little surprise.
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