WASHINGTON (AP) - Republican presidential candidate Donald Trump says rival Marco Rubio should drop out of the race if he doesn't win a single Super Tuesday state on Tuesday night.
Trump says on Fox News, "He has to get out. He hasn't won anything."
The GOP presidential frontrunner also is hitting Rubio for his sudden turn to negative campaigning.
While Trump is looking to rack up a long list of wins on Tuesday, Rubio's goal is more modest.
He's aiming to stay competitive in the delegate count to bide time ahead of the vote in Florida on March 15, which he hopes to win.
