Former Texas Congressman Ron Paul delivered a blow to his son's presidential campaign Wednesday when he conceded that billionaire Donald Trump will likely be the Republican nominee.

"Realistically, do you think Trump will be the nominee at this point?" Paul was asked on the "Steve Malzberg Show" on Newsmax TV.

"Well, at this point, it's certainly realistic," the former Republican presidential responded after a long pause.

Paul did note, however, that he "probably wouldn't invest a whole lot" of money in Trump at this point even if he thought it was a "sure bet" the New York billionaire would secure the GOP nomination.

"There hasn't even been a vote cast, it's all been done by polling ..." he told Malzberg. "They pick people, they boost them up, it's entertainment, and Trump really fit into that quite well."

Earlier in the interview, Paul did say that his son, Kentucky Sen. Rand Paul, could "surprise everybody" when voters hit the polls in February.

"He has a good organization and caucus states are different," the elder Paul said.

h/t IJ Review