CBS News poll: Trump, Kasich tied in Ohio
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Donald TrumpDonald TrumpOvernight Cybersecurity: Trump tweetstorm on Russia probe | White House reportedly pushing to weaken sanctions bill | Podesta to testify before House Intel OPINION: Trump’s bluff: Perfectly legal Will Republicans stand up to the NRA's insurrection rhetoric? MORE and John Kasich are tied in a new online survey just days before voters head to the polls in Kasich’s home state of Ohio.

The businessman and the Ohio governor both have 33 percent support in the CBS News Battleground Tracker poll released Sunday morning.

Kasich does well among voters who say the economy is in good shape, pollsters noted, while Trump leads among those who feel the Buckeye State’s economy is floundering.

Trump, meanwhile, has a 20-point lead over his closest challenger in winner-take-all Florida. He has 44 percent support in the poll, followed by Texas Sen. Ted CruzTed CruzWill Republicans stand up to the NRA's insurrection rhetoric? Rocky rollout for Senate healthcare bill Overnight Healthcare: Latest on Senate healthcare bill | Four conservatives say they'll oppose | Obama slams bill | Health groups offer scathing criticism MORE with 24 percent and Florida Sen. Marco RubioMarco RubioWill Republicans stand up to the NRA's insurrection rhetoric? The Hill's Whip List: Senate ObamaCare repeal bill Ivanka Trump turns to House GOP on paid family leave MORE with 21 percent.

Trump also leads Cruz in Illinois ahead of Tuesday’s primary, 38 to 34 percent.

Pollsters noted that turnout looks to be key for Kasich in Tuesday’s voting, as his backers are most likely to say they are interested in the race because Trump is running.

The poll of likely Republican primary voters has a 4.4 percent margin of error in Ohio, a 4.8 percent margin of error in Florida and a 4.4 percent margin of error in Illinois. 

Kasich leads Trump by 2 points in Ohio, according to a RealClearPolitics average of polls while Trump tops his closest challenger by 18 points in Florida and 9 points in Illinois.

--This report was updated at 12:45 p.m.