A new poll finds Hillary ClintonHillary Rodham ClintonAre Democrats trying to pin the blame for their own sins on Russia? Trump: Calling Warren Pocahontas ‘an insult to Pocahontas’ GOP vows to use Pelosi against Democrats in 2018 MORE with more support in Florida than either former Gov. Jeb Bush (R-Fla.) or Sen. Marco RubioMarco RubioElection hacking fears turn heat on Homeland Security Will Republicans stand up to the NRA's insurrection rhetoric? The Hill's Whip List: Senate ObamaCare repeal bill MORE (R-Fla.). 

The Quinnipiac University poll released Wednesday found Clinton with 50 percent and Bush with 43 percent in the poll. Her lead over Rubio is larger, 53 percent to 41 percent. The numbers are similar to those Quinnipiac found in its March poll of the state.

Clinton has not announced a 2016 candidacy for the White House, but is seen as the overwhelming favorite to win the Democratic nomination if she chooses to run.

The Quinnipiac poll suggested she'd be a stronger candidate for Democrats in Florida than Vice President Biden, who trailed Bush and Rubio in support.

Rubio remains fairly popular in Florida — 51 percent approve of the job he's doing, while 35 percent disapprove. But his handling of immigration issues isn't viewed as positively by his constituents. According to the poll, 41 percent disapprove of the way he's handling the issue, while 33 percent approve. Those numbers are better with Republicans, with 52 percent approving of his work on immigration while 24 percent disapprove.

Clinton remains popular in Florida: She has a 57 percent approval rating, with 38 percent disapproving. Bush is also popular, with a 54 percent approval rating to 33 percent who disapprove.

The poll of 1,176 voters was conducted from June 11-16 and has a margin of error of plus or minus 2.9 percentage points.