A new Quinnipiac poll in Ohio shows Rick Santorum leading the GOP presidential field with 36% of likely Republican primary voters, followed by Mitt Romney at 29%, Newt Gingrich at 17% and Ron Paul at 11%.
Said pollster Peter Brown: "A week out, Sen. Rick Santorum remains seven points ahead among Ohio's likely Republican primary voters. While almost half the voters say they might change their mind, Santorum supporters seem a little surer of their vote. What happens in Michigan tomorrow night might have an impact on voters in Ohio's Republican primary."