Short and medium term, nothing can be done. The rot is in the dominant political party, 1/3 of voters and wall street and corporate America.

No one will trust the US for a lifetime because they have proven themselves beyond a shadow of a doubt to be an incapable partner unworthy of any kind of Trust. 20 years after Trumps death, even if the Dems sweep everything and fix the courts and similar institutions, society will still be littered with christo-fascists.

When/If they can somehow regain sanity, competence, the rule of law and always bargain in good faith, and everyone alive today is dead of old age and no one but history books remembers the march to authoritarianisn, people may learn to trust again. I say all of this as the optomistic view.

The more realistic view, is the US empire who modeled itself in many ways after Rome, maybe did it too well. These are going down as history repeating itself. Caligula and Nero come to mind of the current state of affairs and no one has any reason to hope it's going to get better.