FAA, but not ATCs. I think a lot of the FAA folks were also offered their jobs back, like with other agencies. As a consequence of court decisions and "oh shit, those are actually important jobs".
Would tend to make recruitment more difficult, though. "Yeah, we just had a bunch of people fired by some weird Twitter idiot, but you should totally train for years to come work for us, that couldn't possibly go wrong."
Would tend to make recruitment more difficult, though. "Yeah, we just had a bunch of people fired by some weird Twitter idiot, but you should totally train for years to come work for us, that couldn't possibly go wrong."