Per NPR:
Congress has rarely resorted to the most extreme punishment at its disposal. The House has expelled only five members in its history — three during the Civil War and two after their convictions on public corruption charges. It would be groundbreaking for the House to kick out Santos before his case in federal court is resolved.
There's not really an established precedent for booting Congress members out before a conviction. So, while I agree he's a 10/10 shitbag, I think there's value of letting due process play out and then kick him to the curb.
Lol, I'm imagining the call the casting director made to Madonna.
"Hey Madonna, you were great, but you weren't 'milk blasting outta titties' great so we're gonna pass."