If the premise is that folks crossed over the unprotected Southern border, Maine is basically about as far as one can get while still remaining in the contiguous 48.
Trump wants Republicans to lose elections, apparently. IIRC, Susan Collins is up for re-election this year in a tough race, and there is a big scandal in Minnesota that would have hurt Democrats (Tim Walz dropped out because of it) until Trump sent ICE. This whole thing is unreasonable from every angle you could possibly look at it.
But also ask yourself this: Why are they not going after all the companions that hire illegal immigrants and arresting the CEO's? Put one CEO in jail for hiring illegal immigrants and the problem would be solved.
The reason is they do not care about illegal immigration, they are about stoking the left/right division so you do not start a class war.
PS. Where are all the ethical hackers and whistle blowers? We need you!