I'll do a few random ones I did last time for 2020
The GraduateMrs. Robinson- Biden/Bloomberg in primary, hates Trump and will vote for the Dem nominee
Benjamin- Sanders
Mr. Robinson- Trump
Elaine- Sanders or Warren
Mr. Braddock- Trump
Mrs. Braddock- Probably not overly political but would vote for whoever her husband did
All in the FamilyArchie- Trump
Edith- Biden/Bloomberg, probably undecided if Sanders in general
Mike- Sanders
Gloria- Sanders or Warren
Phantom ThreadReynolds- Conservative in UK, probably Biden/Bloomberg in US
Alma- Labour in UK, Sanders in US
Cyril- Conservative in UK, Biden/Bloomberg in US.
Mayberry
There weren't any black people in Mayberry for a reason, all Trumpers, except for Opie who goes off to college becomes a famous Hollywood director and leaves Mayberry far behind.
I could see Andy as a New Dealer and he had little flashes of social liberalism (laughing off suggestions that Helen should quit her job when they got married, exc) so he'd probably be for Biden/Bloomberg. Opie got into rock music and stuff as a young teen in the later episodes so I could see him developing liberal views. Hard to imagine Aunt Bee voting for Trump with "grab her by the pussy" and his personal life, too, not sure what he would have done. Most the general townspeaople (Barney, Floyd, Gomer, Goober) are probably Trumpers.