Marco Rubio (left) and Donald Trump argued during the Republican presidential primary debate Thursday night in Detroit.
Marco Rubio (left) and Donald Trump argued during the Republican presidential primary debate Thursday night in Detroit. Carlos Osorio The Associated Press
Marco Rubio (left) and Donald Trump argued during the Republican presidential primary debate Thursday night in Detroit. Carlos Osorio The Associated Press

Gail Collins: Why do we call this candidate ‘Mister Trump’?

March 04, 2016 12:39 PM