Sen. Rand Paul said that comedian Jon Stewart “doesn’t care about the truth” in response to Stewart’s comments about the Kentucky Republican forcing debate on authorizing a permanent Sept. 11 victims compensation fund.

Paul and Republican Sen. Mike Lee of Utah drew backlash Wednesday for objecting to a unanimous consent measure to authorize the fund. Paul said he did so because it lacked a funding mechanism. After the move, Stewart and first responder John Feal criticized the senators’ action in an interview with Bret Baier. Feal said the senators “lack humanity,” and Stewart said that it was an “outrageous place for them to take a stand.”

Paul pushed back on the notion Thursday on Fox News, saying that Stewart had made himself part of political “B.S.”

“I know Jon Stewart, and Jon Stewart is sometimes funny and sometimes informed,” Paul said.