With less than a month to go until Florida's Republican primary, a new survey shows Marco Rubio dominating his closest GOP rival Carlos Beruff.

A St. Pete Polls survey released Wednesday said Rubio, the incumbent who only recently decided to run again for his seat, leads real estate developer Carlos Beruff by 33 points among likely primary voters — 55-22.

Another 19 percent said they would pick someone else in the GOP primary, and 5 percent said they were undecided.

Rubio is considered the favorite in the race, despite originally deciding not to run for reelection following his failed 2016 presidential campaign. He reversed his decision on June 22.

The new survey also found Rubio has strong support from Hispanic voters (69 percent) and millennial voters (67 percent).

The survey of 1,835 likely Republican primary voters was conducted Aug. 2 through an automated random calling system. It carries a margin of error of plus or minus 2.3 percentage points.

Republican voters in the Sunshine State cast their primary ballots on Aug. 30.