President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE jabbed at Sen. Elizabeth Warren Elizabeth WarrenHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Democratic senators ask inspector general to investigate IRS use of location tracking service MORE (D-Mass.) in an interview Monday, saying you would have to "ask her psychiatrist" if Warren thinks she can beat him in 2020.

Trump responded to a question from host Pete Hegseth on Fox News's "All-American New Year" on whether he thinks Warren believes she could win a presidential contest.

"Well, that I don't know," Trump said. "You’d have to ask her psychiatrist."

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His comments came hours after Warren announced she was launching an exploratory committee to consider a 2020 bid on Monday.

Trump also took a dig over Warren's claims of Native American ancestry.

"I think you have more than she does, and maybe I do too, and I have nothing," Trump said in the interview Monday. "So, we’ll see how she does. I wish her well, I hope she does well, I’d love to run against her."

Trump has regularly ridiculed Warren as "Pocahontas" and questioned her ancestry.

In October, Warren announced the results of a DNA test that she said showed "strong evidence" of Native American ancestry. The test results did little to stem the attacks from Trump and also opened Warren up to criticism from Native American groups.