A former US Department of Justice lawyer on Sunday described how an appointee of President Donald Trump told him to lie about Kilmar Abrego García’s supposed ties to the gang MS-13 after he was wrongfully deported to El Salvador earlier this year.

During an interview with CBS News’ “60 Minutes,” whistleblower Erez Reuveni said that he was told by a superior at DOJ to argue in court against bringing Abrego García back to the US on the grounds that he was an MS-13 member and a “terrorist.”

“That is not correct,” he said of the claims. “That is not factually correct. It is not legally correct. That is, that is a lie. And I cannot sign my name to that brief.”

Reuveni went on to say that, even if Abrego García had been a gang member, his right to due process was still being violated by the Trump DOJ.