Story highlights A new poll released Monday by Monmouth University finds Hillary Clinton with a small lead over Donald Trump in Ohio

Clinton and Trump are both outperforming Barack Obama and Mitt Romney among the demographic groups they lost in 2012

(CNN) Hillary Clinton has a narrow advantage over Donald Trump in the swing state of Ohio, according to a new poll released Monday.

The Monmouth University poll finds Clinton up four points on Trump among likely Ohio voters, 43% to 39% -- within the survey's 4.9-point margin of error.

Additionally, Libertarian candidate Gary Johnson is getting substantial support in the state, with 10% saying they'll vote for him, while less than 1% say they will vote for Green Party candidate Jill Stein.

Clinton's lead is consistent with most post-convention polling of the Buckeye state, where Clinton is generally shown leading by mid-single digits.

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