A supporter of Republican presidential hopeful and former U.S. Sen. Rick Santorum wears a pin with a photo of Bella Santorum, Rick's daughter, which reads 'Go Dad! Love, Bella' while Rick gives his speech at the Stoney Creek Inn on January 3, 2012 in Johnston, Iowa. Bella was born with a rare genetic disorder called Trisomy 18.
- [Andrew Burton/Getty Images]

Former US Senator Rick Santorum holds his youngest child, Isabella, before announcing his candidacy for president in the 2012 election on the steps of the Somerset County courthouse June 6, 2011.
- [Jeff Swensen/AFP/Getty Images]

Republican Presidential candidate, former U.S. Sen. Rick Santorum prepares to have lunch with his wife Karen (C) and daughter Sarah at the Riverside Brewery and Restaurant on April 1, 2012 in West Bend, Wisconsin.
- [Scott Olson/Getty Images]

Republican presidential candidate, former U.S. Sen. Rick Santorum hugs his daughter Sarah Maria Santorum after speaking during a campaign stop at the Pennsylvania Leadership Conference March 24, 2012 in Camp Hill, Pennsylvania.
- [Jessica Kourkounis/Getty Images]

Presidential candidate Rick Santorum arrives on stage with his family to address the 39th Conservative Political Action Committee today in Washington.
- [MANDEL NGAN/AFP/Getty Images]

Presidential candidate and former Senator Rick Santorum and his wife Karen Santorum visit CODERI, a school for children with Down syndrome and other special needs, March 15, 2012 in San Juan, Puerto Rico. Santorum is on the second day of two-day campaign trip to where there are 23 GOP delegates up for grabs for the republican presidential nomination. The Santorum's daughter Isabella is a special needs child diagnosed with Edward's syndrome.
- [Christopher Gregory/AFP/Getty Images]

Surrounded by members of his family, Republican presidential candidate, former US Sen. Rick Santorum announces he will be suspending his campaign during a press conference at the Gettysburg Hotel on April 10, in Gettysburg, Pennsylvania. Santorum's 3-year-old daughter, Bella, became ill over the Easter holiday and poll numbers showed he was losing to Mitt Romney in his home state of Pennsylvania.
- [Jeff Swensen/Getty Images]

Supporters of Republican presidential candidate, former Pennsylvania Sen. Rick Santorum listen as he speaks during a rally at the Four Points Sheraton Hotel on April 3, 2012 in Mars, Pennsylvania.
- [Jeff Swensen/Getty Images]