Rep. Kendrick Meek (D-Fla.) indicated Wednesday that he would have a hard time backing his Democratic primary rival Jeff Greene, should Greene defeat him in Florida’s Senate primary.

On a conference call with reporters Wednesday, Meek said “I don’t like to live in the world of hypotheticals,” and labeled Greene “a Republican.”

“Hypothetically — and I do mean hypothetically in a big way — if he was to advance from the Democratic primary then Floridians would be looking at three Republicans debating one another,” Meek said on the call, referencing a potential three-way race between Greene, Marco Rubio (R) and Gov. Charlie Crist (I). 

The billionaire Greene is self-funding his bid and has already spent millions on TV ads. The latest polling numbers in the race have Meek and Greene close, but show a large number of undecided voters. 

Meek led Greene 28 percent to 25 percent, but a full 37 percent of voters were undecided in a recent Public Policy Polling poll.    

Last week, Democratic Senatorial Campaign Committee (DSCC) Chairman Robert Menendez (D-N.J.) indicated that the DSCC would back the self-funding Greene if he won the primary, but may not fully contribute to his cause.

“We always support whoever is our nominee at the end of the day,” he said. “I expect that to be Kendrick Meek. And, you know, until it’s different, we’re with Kendrick Meek and we’re doing everything we can to help him.”

Asked specifically if the DSCC would embrace Greene, Menendez said, “We always support our nominees. Now ‘support’ has all different connotations to it. I don’t spend money everywhere I have a nominee, because I don’t have that much money.”

—J. Taylor Rushing contributed to this post.