Donald TrumpDonald John TrumpTrump's approval holding steady in poll, despite shutdown drama Trump huddles with Pence, Mulvaney, Kushner as shutdown hits one week Trump jokingly congratulated acting EPA chief on not acting like Pruitt: report MORE and Hillary ClintonHillary Diane Rodham ClintonTrump's approval holding steady in poll, despite shutdown drama House GOP probe into FBI, DOJ comes to an end Dershowitz: 'It's been harder for me to get on anti-Trump networks' like CNN MORE are running neck and neck in the presidential battleground state of Florida, a new poll finds.

A Public Policy Polling (PPP) survey of Florida released Wednesday shows Trump (R) edging Clinton (D) among likely voters, 44 percent to 43 percent, in a five-way race that includes Libertarian Gary JohnsonGary Earl JohnsonHillicon Valley: Social media struggles with new forms of misinformation | US, Russia decline to join pledge on fighting cybercrimes | Trump hits Comcast after antitrust complaint | Zuckerberg pressed to testify before global panel Ex-Facebook exec ousted from company sparked controversy with pro-Trump views: report Heinrich wins reelection to Senate in New Mexico MORE, Green Party nominee Jill Stein and independent candidate Evan McMullin.

Johnson takes 5 percent support in that match-up, with Stein and McMullin each taking 1 percent support. Six percent said they’re undecided.

In a head-to-head match-up, Clinton has the slight edge, 47 to 46 percent. Seven percent said they’re undecided in the two-person race.

Florida's 29 electoral votes make it the biggest battleground prize.

The Republican and Democratic candidates have split Florida in the last six presidential elections, with the winner going on to the White House in every instance but one.

Clinton is crushing Trump in Florida among nonwhite voters by 49 points, 71 percent to 22 percent.

Trump, however, has the advantage among the white voters who make up a majority in the state, 60 percent to 33 percent.

There are similarly large disparities between young and old voters in the state. Those under 45 back Clinton 57 percent to 31 percent margin, and those over 65 favor Trump, 59 percent to 39 percent.

In the state's Senate contest, the poll shows incumbent Sen. Marco RubioMarco Antonio RubioNauert faces questions about qualifications at UN The Memo: Trump puts isolationism at center stage Trump's military moves accelerate GOP search for next McCain MORE (R-Fla.) with a slight advantage over Rep. Patrick Murphy (D), 40 percent to 37 percent. Surprisingly, the Libertarian candidate, Paul Stanton, has 10 percent support in that race.

Rubio’s job approval rating is underwater in the poll, at 35 percent positive and 45 percent negative. Murphy, meanwhile, is largely unknown, with 47 percent saying they don’t know enough about him to have an opinion.

Many political watchers believe Rubio is eyeing another presidential run in 2020, which is hurting his favorability rating. Sixty-percent of Florida voters say the candidates should commit to serving a full six-year term.

The PPP survey of 744 likely voters in Florida was conducted Sept. 4–6 and has a 3.6 percentage point margin of error.