Would this be a nightmare scenario for the 117th Congress?

Question

Senate President: Mike Pence (at least until January 20, 2021)

Senate President pro tem: Chuck Schumer 

House Speaker: Nancy Pelosi 

House Majority: Democratic

Senate Majority: Democratic

Senate Intelligence Committee Chairman: Mark Warner

Senate Foreign Relations Committee Chairman: Bob Menendez

Senate Judiciary Committee Chairwoman: Dianne Feinstein 

Senate Finance Committee Chairman: Ron Wyden

Answer 1

Not sure if there is double jeopardy in play. If not, Trump would be impeached. Then Pence would be impeached and we would have one-party rule.