Most elected politicians at this point are happy to repeat the same lies of "this person was arrested because they were being violent/interfering/were acting suspiciously/refused to identify themselves" even if there is multiple sources of video evidence to the contrary. Republicans in particular have no interest in the truth where it conflicts with the claims they want to make to advance their agenda, and most Democrats are too toothless to call out this misbehavior with the force and passion it deserves.

And when they do call it out, people will be told by Fox News and others that "this senator is opposed to the work ICE is doing to solve the problem of illegal immigrants", and other news agencies will say "such-and-such official says this senator is opposed to..." and the propaganda will spread and people will believe it.