MIAMI (AP) – A surprisingly restrained Donald Trump is telling Republicans still wary of his insurgent candidacy that it’s time to unify behind him.

Ted Cruz and Marco Rubio also toned down their rhetoric in the latest presidential debate after concluding that all-out attacks against Trump didn’t work.

The candidates now charge out of Miami with four days left to make their final arguments before Tuesday’s big-state presidential primaries.

Trump is picking up an endorsement from onetime rival Ben Carson before heading to St. Louis and Chicago. John Kasich heads for his must-win home state of Ohio. Rubio is making his home stand in Florida. And Cruz is shuttling from Florida to Illinois.