JD Vance new VPOTUS pick, page-11

Dex the VP is elected same as the prez.
So they can't be sacked or replaced. Except via impeachment of the Congress.

I don't know how he operated with his inner circle when he was last president except what was factually reported.

He sacked a lot of people but maybe that's because they didn't do what he wanted?

End of the day the president is the boss of the executive it's not like the PM here that relies on a caucus for support.

It's a Republic.