Kasich beats Trump in Ohio
© Getty Images

Republican presidential candidate John Kasich is projected to win the Ohio primary, knocking off rival Donald TrumpDonald John TrumpDems seek to chip away at Trump’s economic record Trump to sign directive to reform commercial space regulations Trump on collision course with Congress on ZTE MORE to secure a critical victory that increases the likelihood of a contested convention.

Kasich's win gives him all 66 of the state's GOP delegates.

Fox News and CNN called the race at about 8:45 p.m. EDT, just over an hour after polls closed.

ADVERTISEMENT
The Ohio governor was fighting for his political life. He had said that he would end his campaign if he lost on his home turf Tuesday.

Kasich got a late assist on the trail from 2012 GOP presidential nominee Mitt Romney, who campaigned at his side.

And rival Marco RubioMarco Antonio RubioAdministration works to assuage critics over ZTE deal Hillicon Valley: Judge rules Trump can't block Twitter users | ISIS content finds a home on Google Plus | Rubio rips ZTE demands as 'terrible deal' | Bill would protect kids' data Overnight Finance: Trump eyes 'different structure' for China trade deal | Trump mulls auto import tariffs | Banks get green light to offer short-term loans MORE, who had practically no chance iof taking n Ohio, had told supporters in the state to vote for Kasich to try to keep the state's delegates out of Trump's hands.

Trump's loss makes it tougher for the businessman to clinch the nomination outright before the GOP convention. He gains no delegates from Ohio because of the winner-take-all rules.