Republican presidential candidates, Sen. Marco Rubio, R-Fla, left, and businessman Donald Trump argue while answering a question during the Republican Presidential Primary Debate at the University of Houston Thursday, Feb. 25, 2016.
Republican presidential candidates, Sen. Marco Rubio, R-Fla, left, and businessman Donald Trump argue while answering a question during the Republican Presidential Primary Debate at the University of Houston Thursday, Feb. 25, 2016. Gary Coronado AP
Republican presidential candidates, Sen. Marco Rubio, R-Fla, left, and businessman Donald Trump argue while answering a question during the Republican Presidential Primary Debate at the University of Houston Thursday, Feb. 25, 2016. Gary Coronado AP