Sen. John Fetterman (D-PA) bashed Gov. Gavin Newsom (D-CA) for allegedly running a "shadow" presidential campaign.

Fetterman made the comments at an Iowa Democratic Party fundraiser while advocating for all Democrats to fully back President Joe Biden for reelection as president, according to NBC News. He warned other Democrats eyeing the presidency not to run in 2024, saying that it would help former President Donald Trump instead.

BIDEN STEERS CLEAR OF VIRGINIA BEFORE BELLWETHER ELECTION

“Let me say something that might be uncomfortable,” the Pennsylvania Democrat began. “There are two additional Democrats running for Pennsylvania, excuse me, running for president right now. One is a congressman from Minnesota, the other one is the governor of California, but only one has the guts to announce it.”

The Washington Examiner reached out to Fetterman and Newsom for comment.

He also told his fellow Democrats not to express criticism of Biden for fears that it would play in Trump's favor.

“If you are a Democrat that wants to criticize and go after Joe Biden, our president, just go ahead and write a check for Trump,” Fetterman reportedly said.

CLICK HERE FOR MORE FROM THE WASHINGTON EXAMINER

The Pennsylvania senator has distinguished himself in recent weeks by criticizing his Democratic colleagues publicly. Most recently, he has directly attacked Sens. Bob Menendez (D-NJ) and Joe Manchin (D-WV).

“At first I was really kind of angry [at him],” Fetterman said about Manchin, regarding his move to reinstate the Senate dress code after it was removed to accommodate Fetterman. “And then I realized, well, he’s not going to be around much longer, and I’m going to get his parking space.”