Senator Cory Booker launched a blistering attack on President Donald Trump during a Tuesday appearance on MSNBC’s “The Briefing,” accusing the president of unprecedented corruption and warning that Republicans who continue supporting him will eventually be judged harshly by history.

Booker made the remarks while discussing Trump’s leadership and the response from Republicans in Congress, arguing that many privately oppose the president but refuse to criticize him publicly.

“What President Trump is doing is a moral outrage from his corruption, his crypto schemes, his ballroom, the monuments to his ego, to all the kleptocracy he’s doing and many of the incompetent people he’s putting in very important places,” Booker said.

The New Jersey Democrat claimed that dissatisfaction with Trump extends beyond Democratic circles and suggested many Republicans quietly share similar concerns.

“Now, it’s not just a democratic thing that believes that many of us have private conversations with folks who will express their disdain, their outrage in private, but do nothing in public,” he added.

Booker then escalated his criticism further, predicting that Trump’s presidency would ultimately be remembered as historically corrupt.

“We know five years from now, ten years from now, when people look back at the most corrupt president in American history that torched our democracy and did outrageous things, the question is going to be, who were the people so complicit that they allowed these things to happen?”

He also argued that Republicans understand they may eventually face political consequences for remaining aligned with Trump.

“And Republicans know they’re going to be held accountable. They’re going to be on the record.”

Booker went on to claim that cracks are beginning to emerge within Republican ranks as Trump continues to dominate the political landscape.

“So I’m starting to see more people as Donald Trump continues to strain our democracy and push every sense of decency. I’m starting to see some wobbly knees amongst Republicans who for too long have been doing that advanced form of yoga and bending over backwards, contorting themselves to do what Donald Trump wants. We’re starting to see weakening in that.”