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Poll: Trump leads Rubio in Florida by double digits

(CNN)Sen. Marco Rubio of Florida is in serious danger of losing his home state to Republican presidential rival Donald Trump, a new poll shows.

Trump leads Rubio 44% to 28% in the Sunshine State, according to a Quinnipiac University poll of Florida released Thursday.
Sen. Ted Cruz of Texas placed third with 12% support, ahead of Ohio Gov. John Kasich at 7% and retired neurosurgeon Ben Carson with 4%.
    The survey shows Florida voters are beginning to make up their minds: Only 5% of likely Republican primary voters said they are undecided, though 30% say they may change which candidate they support.
    The Florida GOP primary, which awards the winner all of its 99 delegates, will take place March 15.
    While Rubio has dismissed concerns about his primary strategy -- and continues to insist that the fractured GOP field has contributed to Trump's dominance -- failure to win a single delegate in his home state's winner-take-all contest would seriously undercut his viability as a candidate.
    Rubio aide Todd Harris was quick to shrug off the Florida poll, writing on Twitter, "Media needs to chill. The FL Q poll #'s are way wrong. We are going to win Florida. Period. Take it to the bank."
    The Quinnipiac Florida poll isn't the first to show Trump leading a home state contender. A Quinnipiac poll of Ohio released earlier this week found Trump beating Kasich, the state's popular governor, 31% to 26%. Ohio voters will also cast their ballots in a winner-take-all primary also March 15.
    Trump is poised to rack up hundreds of delegates in the Super Tuesday primaries March 1. His lead over Rubio and Kasich in their delegate-rich, winner-take-all home states, which vote two weeks later, threatens to derail their bids and push him even closer to securing the Republican nomination.
    The poll surveyed 705 likely Republican primary voters in Florida between February 21-24 and has a margin of error of plus or minus 3.7 percentage points.