From USA TODAY.

U.S. Sen. Cory Booker has kicked off what he promises to be a marathon speech on the Senate floor.

Starting at 7 p.m. ET on Monday, Booker began criticizing President Donald Trump and Elon Musk.

"I’m heading to the Senate floor because Donald Trump and Elon Musk have shown a complete disregard for the rule of law, the Constitution, and the needs of the American people," Booker posted on X earlier in the day.

"I am not going to stop speaking, I am not going to stop standing," he said. "I am going to go for as long as I’m physically able to go."