Well, he was peddling his influence in advance. That's established now.
What makes you think he stopped one he joined this serially corrupt regieme?
90% of ICE detainees are held in private prisons, under horrendous conditions. Even before Trump, the private prison industry has a long history of greasing Republican politicians and buying influence.
With the Trump crowd, that's all but assured.
And we have already seen stories about the wrong people getting railroaded out of the country. So, it's not like ICE is in any way well managed.