Fox Business anchor Charles Payne said Rep. Alexandria Ocasio-Cortez (D-N.Y.) is the "de facto leader" of her party, adding that that many top lawmakers suddenly jumped on board with her Green New Deal.

"She has become the de facto leader, without a doubt," Payne said. "They're afraid of her."

At a speaking engagement, President Trump remarked that Democrats were "standing behind her shaking... petrified of her," at an announcement for the Green New Deal.

Bill Hemmer and Sandra Smith played video showing the freshman Democrat standing in front of Green New Deal co-sponsor Sen. Edward Markey (D-Mass.) and a host of other supportive Democrats. 

Payne said that in a matter of months since the start of the new Congress, Ocasio-Cortez and her left-wing allies in the movement have "dramatically changed the Democratic Party."

'Definition of Hypocrisy': GOP Rep Calls Out Nadler for 1998 Effort to Suppress Starr Report

'I've Been Fighting Him Half My Life': Trump Blasts NY Dem Nadler's Demand for Mueller Report

He said President Donald Trump is correct when he said Tuesday that he deserves to lose in 2020 if he cannot defeat Green New Deal-supporting Democrats.

Payne, however, cautioned that not all Democrats are fervent Ocasio-Cortez fans.

He said that the New Democrat Coalition has been lukewarm at best on the legislation.

Payne said the coalition, which includes Chairman Derek Kilmer of Washington, and Reps. Mikie Sherrill of New Jersey, James Himes of Connecticut and Pete Aguilar of California, is a group of socially liberal but more fiscally moderate Democrats.

Watch more above.

'A Political Hate Group': Cotton Urges IRS to Probe SPLC's Tax-Exempt Status

'The Border's There for a Reason': Lawrence Jones Asks Texans About Illegal Immigration, Trump's Wall