> Where does Mueller get the authority
He has support from most of DC, but congress is what he’s counting on for “authority”: Pelosi, Schumer, Graham, McCain, McConnell, Ryan.
They’ve said any attempt to stop Mueller is impeachable. So Mueller can pretty much search, seize, subpoena, and probably have anyone arrested for any reason. And the executive branch can’t do anything about it without facing impeachment. And Mueller is taking advantage of that.
Don’t think of writing anything pro-Trump. And accepting an appointment from Trump now means literally having Mueller harass you, your family and friends, and possible rack up lots of lawyer fees for something you didn’t do or something that was legal (and you better not be wrong if Mueller’s thugs question you about it). Muller has gone way beyond collusion investigation. Beyond simply helping Democrats in the 2018 elections. Or even just slowing Trump down. And congress - D and R - supports him.
“They’ve said any attempt to stop Mueller is impeachable”
In reality that is bull$#%t.
Trump is deferring to the Congressional GOP because of the midterms. They don’t want direct confrontation with him lest the their base notice the GOP is playing for Team Kenya.
Trump will fire Mueller after the midterms and dare the GOP to impeach him. They won’t because that would rip their cover away and be the end of the Party of Lincoln.