John Kasich says he won’t take the “low road” in his party’s divisive presidential primary after a home-state win in Ohio.

The Ohio governor beat back a challenge from Donald Trump, which keeps Kasich’s underdog campaign alive. He’s one of just three candidates left in the race after rival Marco Rubio dropped out earlier Tuesday.

“The campaign goes on,” Kasich told a crowd in Berea, Ohio Tuesday night.

Kasich’s speech was interrupted by a protester wearing clothes with Trump’s campaign logo, “Make America Great Again.”

To that, Kasich joked that he appreciates a good, “peaceful protest every once in a while” since he went to college in the 1970’s.

By winning Ohio’s pirmary,  Kasich picked up all 66 of the state’s delegates to the Republican National Convention. He would have to win 91 percent of the remaining delegates to clinch the nomination before the convention this summer.

Trump still leads the race for delegates – with 568. Ted Cruz has 370 delegates, Kasich has 129 and Rubio left the race with 163.

It takes 1,237 delegates to win the Republican nomination for president.READ MORE FROM TUESDAY’S PRIMARIES: