Sadly, it is obvious, that the swamp is too big, and can not be drained. Only a nuclear bomb can do the job now.
Wrong example, and always has been. It’s not a swamp that we can drain. It’s a kid’s game (”Jingo?”) where you have to pull out these sticks without collapsing the whole structure.
If Trump went Wyatt Earp on the FBI, and all the departments, etc., he indeed would be impeached. But he can (as Kurt Russell did in “Tombstone”) pick them off one at a time or a couple at a time and replace them with loyalists, in a couple of years you can do broader measures.
For example, I think he still only has a handful of lawyers in Justice who are “his.” The rest either are Obama’s people or open positions that haven’t been filled.