California and New Jersey changed their borders mid-decade
So did Maine, in 1983, although that was our regular redistricting (and the first change since Maine lost it's third seat for the 1962 elections except for the town of Otisfield switching to the second district in 1978 when it switched from Cumberland to Oxford Counties; the districts were probably defined based on counties). From the lines in your map, it seems you've used the 1978-82 districts. Ford only won the then-second district by 620 votes (0.28%) in 1976. Otisfield doesn't seem to have been big enough back then to give that kind of raw vote margin to either candidate, and my guess is that Ford carried it anyway. The Waldo County towns that shifted to the second district for the 1984 elections seem to be marginally Republican back then overall, but Winterport was Democratic from results I've looked at back then. It might be worth checking to see who carried the 1984 through 1992 ME-02 in 1976 or if Ford won a majority in 1976 or if Carter fell under 40% in 1980 in the 1984 through 1992 ME-01.
