You are correct, with a however…if the President is impeached/convicted/removed, it is not out of the realm of possibility that the rest of the regime can be investigated for same with same result. It would just take longer. End result being, they’re out of our hair. Pipe dream, won’t happen.
No they aren’t…
Well in this example they are correct. They are saying you could have a chain of separate impeachment trials for the VP, Cabinet, officers, etc. But really if you can get Trump and Vance (actually much much more difficult) then Speaker (who would be Dem if this is occurring) becomes President