One advantage of the Internet and epecially fedi and indi services, is that we can share what is going on, we need to share pictures, video on here, peertube and other places, then make sure that those videos get copied to other instances in different legal juristictions.
IIRC, after 9/11 the spouses of workers who were killed found their visas were not valid as they had entered on their spouses visa, and that person was a victim of the terror attacks, this was under a GOP government in 2001, I am not sure what the outcome of some of these cases were, I think family members had a good argument under the circumstances.
I for one, can't wait to see the faces of the politicians here who defend trump and demand apologies from other MPs who tell the truth about trump. Being US president does not suddenly turn a Rapist in to a person who has not committed rape.