In some ways, John, I'd agree. Indeed, Nikki Haley sorely needs to be fired .. She's an embarrassment to both the UN and, especially, to the US delegation under her. Pres. Trump made a big mistake by appointing her as US Ambassador to the UN, as she lacks any qualifications for this post. Her banshee-like rants have nearly all of her counterparts shaking their heads in bewilderment. She couldn't even handle the governorship of South Carolina, much less, her current post. She should've kept her job as a Waffle House waitress, as she excelled in it.
It would be more difficult replacing Trump .. His VP, Mike Pence, isn't any better .. He may very well be worse, since he isn't as independent as Trump. He's a Globalist, Trump isn't.