I live in Maine.
Collins received more than 50% of the vote plus just one additional vote in November 2020. She did not get re-elected by rank choice voting. I think she had 53% of the vote.
If a candidate for federal office in Maine receives LESS than 50% of the vote plus one additional vote, then RCV will kick in.
Democrat Jared Golden, the Maine second district congress critter, won his House seat in 2018 because of rank choice voting....GOP incumbent Bruce Poliquin actually received 2,200 more votes but lost.
RCV-enabled machines can still be used screw with a vote. To send certain ballots to adjudication for example.
Do you happen to know anything about adjudication rates in ME since RCV-enabled machines have been in use...?