Newt Gingrich shared his thoughts on the Democratic 2020 presidential field after three-term Rep. Beto O'Rourke (D-Texas) officially announced a White House bid.

O'Rourke, who raked in an eye-popping $80 million in his unsuccessful bid to topple Sen. Ted Cruz (R-Texas), joins a crowded crowded Democratic field that includes Sens. Kamala Harris (Calif.) Cory Booker (N.J.), Elizabeth Warren (Mass.), Amy Klobuchar (Minn.), Kirsten Gillibrand (N.Y.) and Bernie Sanders (I-Vt.).

On "Fox & Friends" Thursday, Gingrich, a Fox News contributor and former House Speaker, predicted that O'Rourke's destiny is to "keep losing."

"Beto O'Rourke is one of the great examples of the left talking itself into hysteria," Gingrich said.

He predicted that O'Rourke will not win the Democratic nomination, but even if he did, he would not be able to carry his home state against Trump and would lose the general election.

Gingrich shared who he believes will be the Democratic candidate: Kamala Harris.

"I'm unequivocal. I'm for Kamala Harris," he said. "[She's an] African-American woman, [from the] largest state in the country, has a great story. I think she is a very effective campaigner. And I just think she'll end up being the nominee."

He clarified that he's not supporting Harris -- who backs far-left proposals like Medicare-for-all like and the Green New Deal -- and he does not believe she would beat Trump.

"In a Democratic primary, there's nothing nutty enough to disqualify you," Gingrich said.

Watch the "Fox & Friends" segment above.

Tomi Lahren: College Admissions Scandal Shows Hypocrisy, Entitlement of Nation's Elites

Pence: A Vote Against Trump's Nat'l Emergency Is a Vote Against Border Security

NY Gov. Cuomo Fires Back at Trump for Calling Him 'Presidential Harasser,' Blasts New Tax Laws