Republican presidential candidates (L-R) Ohio Governor John Kasich, Jeb Bush, Sen. Ted Cruz (R-TX), Donald Trump, Sen. Marco Rubio (R-FL) and Ben Carson participate in a CBS News GOP Debate February 13, 2016 at the Peace Center in Greenville, South Carolina. (Photo by Spencer Platt/Getty Images)
Republican Presidential Candidates Debate In Greenville, South Carolina
Republican presidential candidates (L-R) Jeb Bush, Sen. Ted Cruz (R-TX) and Donald Trump participate in a CBS News GOP Debate February 13, 2016 at the Peace Center in Greenville, South Carolina. (Photo by Spencer Platt/Getty Images)
Republican Presidential Candidates Debate In Greenville, South Carolina
Republican presidential candidates (L-R) Ohio Governor John Kasich, Jeb Bush, Sen. Ted Cruz (R-TX), Donald Trump, Sen. Marco Rubio (R-FL) and Ben Carson stand on stage during a CBS News GOP Debate February 13, 2016 at the Peace Center in Greenville, South Carolina. (Photo by Spencer Platt/Getty Images)
Republican Presidential Candidates Debate In Greenville, South Carolina
Republican presidential candidates (L-R) Ohio Governor John Kasich and Jeb Bush participate in a CBS News GOP Debate February 13, 2016 at the Peace Center in Greenville, South Carolina. (Photo by Spencer Platt/Getty Images)
Republican Presidential Candidates Debate In Greenville, South Carolina
Republican presidential candidates (L-R) Jeb Bush, Sen. Ted Cruz (R-TX) and Donald Trump participate in a CBS News GOP Debate February 13, 2016 at the Peace Center in Greenville, South Carolina. (Photo by Spencer Platt/Getty Images)
South Carolina GOP Debate
Republican presidential candidates hold a moment of silence for Supreme Court Justice Antonin Scalia at the start of their debate in South Carolina on Feb. 13, 2016. (credit: CBS2)
Republican Presidential Candidates Debate In Greenville, South Carolina
Republican presidential candidates (L-R) Ohio Governor John Kasich, Jeb Bush, Sen. Ted Cruz (R-TX), Donald Trump, Sen. Marco Rubio (R-FL) and Ben Carson stand on stage during a CBS News GOP Debate February 13, 2016 at the Peace Center in Greenville, South Carolina. (Photo by Spencer Platt/Getty Images)
