Bush leads Rubio in Sunshine State battle

Washington (CNN)The two Floridians running for president may be heading for a battle royale in their home state, and it looks as if Jeb Bush is currently on top.

Former Gov. Bush leads Florida Sen. Marco Rubio in the state's key Republican primary, according to a new Mason-Dixon poll released Friday. Bush earned 28% of Republicans' support, while Rubio, Bush's mentee, wins over 16% of those polled.
The two Floridians have overlapping donor networks and both rise from the same Miami-based political base. Some Republican strategists believe that only one of the two candidates will emerge as a top-tier contender after Florida's March 15 primary, which features several of the country's most expensive media markets.
Why these Florida GOPers want Bush and not Rubio ​
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Previous polls have shown a narrower spread between Rubio and Bush, with the most recent Mason-Dixon survey in April revealing the distance between the pair to be just one percentage point. Rubio fell from 30% support to 16% since April, but Bush held steady in the Mason-Dixon poll.
    Winning some of Rubio's support appears to be Wisconsin Gov. Scott Walker, who earned 16% in the new Mason-Dixon poll, up from 2% in April. Following Walker in Friday's poll was businessman Donald Trump, who notched 11% support. All other candidates earned 5% or less in the survey.
    Five hundred Republican voters were surveyed this week from Monday to Thursday with a margin of error of 4.5 percentage points.