5 takeaways: More policy, few punches in unusually civil GOP debate

Republican presidential candidates, Sen. Marco Rubio, R-Fla., left, and Donald Trump, debate on the campus of the University of Miami on Thursday in Coral Gables, Florida.
Republican presidential candidates, Sen. Marco Rubio, R-Fla., left, and Donald Trump, debate on the campus of the University of Miami on Thursday in Coral Gables, Florida.