Conservatives and Liberals alike, here is what you tell your congressional representatives and senators when you call them.
I recommend the 5 Calls app, it makes calling easy.
"Hey, my name is [name] and I live in [zip code], and I'm extremely upset that my elected people in the House and Senate are not defending the Constitution against the unelected, unvetted, unapproved Elon Musk taking an arsonist's torch to the federal government. What he is doing is illegal and I see no effort to stop it. Congress has the power of the purse. If the majority in Congress wants to see a smaller government, then fine -- DO YOUR JOB by passing a smaller budget that will shrink the government. If you won't do your job, and you'll stand idly by while some unauthorized thug does the work you won't do, then pack up your office and get out, because you're proving yourself both useless and in violation of your oath of office."