And think about what would need to happen if you'd like to see actual change in leadership of the executive branch. You'd need the House comfortably controlled by Democrats, with the Senate controlled by a supermajority of Democrats. I think that you'd need both the President and Vice President impeached, convicted, and removed from office, while preventing the current/acting President from having a new VP nominated and confirmed, so that the Speaker of the House became acting President. This seems even less likely.