That's not just partisanship, like last time. Last time it was clear that he had committed very high crimes and misdemeanors. They stood by him purely as a matter of party over country.
In this case, they support what he's doing. Perhaps not in every detail; they'd be screaming about it if a Democrat did the same. But overall, he's doing what he promised in his campaign, and they were elected by those same voters. There's just nothing to impeach him about.
Perhaps at some point, courts will start declaring his actions illegal, and hold him in contempt for violating their orders. That might conceivably be sufficient violation of the rule of law to at least have a basis for impeachment. Which still won't happen, but at least they'd consider the idea before dismissing it.
Besides, it wouldn't help. The Vice-President has the same ideals and would do the exact same thing.
Well, that's more effective at budget-cutting than just firing employees. Employees are comparatively cheap; you have to fire thousands of people to save $1 billion. The real costs are in the programs that those employees were administering.
