Mitt Romney's lead in Tuesday's Florida presidential primary is up to 14 percentage points, according to a new Quinnipiac poll released Monday.
Romney, the former Massachusetts governor, leads former House Speaker Newt Gingrich, 43-29 percent among likely Republican voters.
24 percent say they could still change their minds, while 7 percent were undecided.
Romney is "headed toward a double digit victory that touches all the GOP bases," said assistant poll director Peter Brown. He carries all regions of the state, as well as Tea Party backers and evangelical Christians.
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If Romney wins big Tuesday, Brown said, "it's hard to see where Gingrich goes from here."
Former Pennsylvania Sen. Rick Santorum and Texas Rep. Ron Paul each had 11 percent.
539 likely voters were surveyed Jan. 27-29. Margin of error is plus or minus 4.2 percentage points.
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