How to Change Your Political Party Affiliation Photo: Victor Moussa (Shutterstock) Aside from one Republican Senator who’s currently mulling a decision to switch her political affiliation, Wednesday’s assault on the U.S. Capitol hasn’t necessarily compelled Republican lawmakers to flee the party en masse. The Trump era, with its normalization of incendiary rhetoric, only saw a handful of lawmakers switch their affiliations out of contempt for the president; one notable example is former Michigan House Representative Justin Amash, who abandoned the Republican party to become an Independent in 2019 and then switched again to Libertarian last year. Advertisement