Story highlights John Kasich said he won't tell his supporters to back Marco Rubio in Florida's primary

Kasich is entering the must-win primary in Ohio this week

(CNN) Ohio Gov. John Kasich isn't competing to win Florida he said Sunday.

But even after rival Republican presidential candidate Florida Sen. Marco Rubio told his supporters that the best way to stop front-runner Donald Trump in Ohio is to support Kasich, the Ohio governor isn't returning the favor.

Kasich told CNN's Jake Tapper on "State of the Union" he isn't going to tell his supporters to back Rubio or any other non-Trump contender in Florida.

"My people aren't like robots -- you know, go do this, go do that," Kasich said, adding that he's not competing to win Florida.

He made a similar statement Friday to CNN's Erin Burnett.

Read More