Poll: Trump holding slim lead over Kasich in Ohio
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Republican presidential front-runner Donald TrumpDonald TrumpRepublican wins La. Senate runoff in final 2016 race Corker calls Tillerson 'very impressive' The other face of immigration from Mexico is African MORE holds a slim lead over rival John Kasich in Ohio, according to a Public Policy Polling Survey released Monday.

Trump has 38 percent support, with Kasich, Ohio's governor, taking 35 percent in his home state. Ted CruzTed CruzSenate passes dozens of bills on way out of town Senate passes stopgap funding bill, averting shutdown Senate advances funding measure, avoiding shutdown MORE follows, with 15 percent, and Marco RubioMarco RubioSenate clears water bill with Flint aid, drought relief What Trump's Cabinet picks reveal House passes water bill with Flint aid, drought relief MORE comes in last, with just 5 percent.

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Only 69 percent of voters say they're committed to their current choice, with the rest saying they could change their minds before the state's Republican primary on March 15.

In a head-to-head match-up, Kasich leads Trump by double digits, 55 percent to 40 percent, according to the poll.

“Donald Trump has a slight advantage in Ohio,” said Dean Debnam, president of Public Policy Polling, in a statement.

“But John Kasich’s strong advantage over him when you match them head to head may end up propelling him to victory if Cruz and Rubio voters decide to cast strategic votes for the only viable alternative if they want to #StopTrump.”

The poll surveyed 638 likely Republican primary voters from March 4-6. The margin of error is 3.9 percent.

Kasich said last month that he'll drop out of the presidential race if he doesn't win his home state of Ohio. 

In a Quinnipiac University poll taken last month, Trump led Kasich by a slightly larger margin, 31 percent to 26 percent.

The Ohio PPP poll is only the latest Monday to show a tight race in many GOP states. Another poll found Kasich closing the gap on Trump in Michigan, which votes Tuesday. A third poll found Trump's lead over Rubio narrow to single digits in Florida.