On Monday, former federal prosecutor Robert Costello testified in front of a Manhattan grand jury over matters related to a $130,000 hush money payment to a porn star in 2016. Costello told the jury that former Trump attorney Michael Cohen, expected to be Bragg’s main witness in any case against Trump, “couldn’t tell the truth if you put a gun to his head.”

Dershowitz appeared on Fox News on Tuesday night and told host Sean Hannity that “Bob Costello has changed this case dramatically.”

“I think that Bragg now only has two possible results from that. Number one, he can say, ‘alright, I’m going to try to make the case without Cohen.’ He cannot use Cohen as a witness anymore. That would be unethical because of the testimony that Costello gave,” Dershowitz said. “Or he could say, ‘look, I have to drop the case.’ He may not be able to make it without Cohen. But if he can’t make it without Cohen, he can’t make it, because no ethical prosecutor is allowed to put on as a witness somebody who has told the lies and has contradicted himself so much.”

[Well, *maybe*. A lot of the discussion around Costello’s testimony and impact is either speculative or solely sourced by Costello. Like news of the Trump perp walk, we should refrain from jumping to conclusions until the grand jury itself concludes its deliberations, one way or the other. — Ed]