1) Beat in november 2) Best the incumbent 3) Boot 4) Boot from office 5) Defeat an incumbent 6) Depose 7) Dethrone 8) Dislodge from office 9) Kick out of office 10) Move out of Washington 11) Oust 12) Oust from office 13) Oust via election 14) Prevent from being reelected 15) Remove 16) Remove from office Found on https://www.crosswordclues.com/clue/unseat
• (v. t.) Specifically, to deprive of the right to sit in a legislative body, as for fraud in election. • (v. t.) To throw from one`s seat; to deprive of a seat. Found on http://thinkexist.com/dictionary/meaning/unseat/
to dislodge from a seat, esp. to throw from a saddle, as a rider; unhorse. · to remove from political office by an elective process, by force, or by legal action: The corrupt mayor was finally unseated. Found on https://www.infoplease.com/dictionary/unseat