Labor Secretary Alex Acosta's days in the Trump administration are numbered, Fox News legal analyst Andrew Napolitano believes.

Napolitano during a Fox & Friends segment on Thursday panned Acosta's recent press conference defending his role in cutting a generous plea deal for convicted sex offender Jeffrey Epstein, arguing the Labor secretary's performance was "not persuasive," Mediaite reports.

"I don't think he persuaded anybody that he did the right thing," Napolitano said, arguing Acosta "should have indicted" Epstein because he had a "tremendous amount of evidence against" him.

Acosta during Wednesday's press conference insisted his relationship with the White House couldn't be better and that he has President Trump's full support, but Napolitano isn't so sure about that. When asked to predict whether Acosta will last in the administration, Napolitano said he believes his departure is imminent.

"I don't think he'll be around by Friday," Napolitano said. "Well, tomorrow's Friday," Steve Doocy pointed out. "Yes," Napolitano responded.

After Acosta's press conference, Politico reported that Trump aides were happy with his performance and that he appeared to have saved his job, although it was still "unclear ... how long Trump will continue to stand by him." Brendan Morrow