'There’s abundant evidence that Donald Trump has committed crimes in office’: Trump biographer

Pulitzer Prize-winning journalist David Cay Johnston didn't hold back Wednesday on a guest spot on Dean Obeidallah's Sirius XM Progress radio show.

"There's just abundant evidence that Donald Trump has committed crimes in office," he said.

The Trump biographer took it a step further, saying: "I believe, wittingly or not, that he is a Kremlin agent....we actually have a Kremlin agent in White House."

"When the day comes that he's not president," Johnston continued, "he must be indicted and convicted by a jury and imprisoned, otherwise he will do, on steroids, what he did during the 2016 campaign....call [on] people to commit acts of violence...argue that the US government is not legitimate, that law enforcement/intelligence agencies are not legitimate because they don't see the world the way Donald Trump thinks it ought to be."

Listen to the segment below: