Compare Romney (2012) and Trump (2016):
Trump got the same two-party percentage (43.2%) as Romney in Kalamazoo County. The following map compares Trump and Romney. More green is better for Trump, more yellow/orange is worse for Trump (better for Romney).
Trump did best relative to Romney in Galesburg, Comstock 1-3, and K Township 1, all downscale areas. Trump did worst relative to Romney in Portage 18 (Moorsbridge), Oshtemo 3, suburban Texas, and Bronson Boulevard, all wealthy upscale areas.
The State Board of Education can be used as a measure of generic R and D vote since almost nobody is familiar with the candidates. The two-party percentages are Trump 43.2%, SBOE 48.1%.
Trump underperformed Republicn SBOE candidates everywhere except Comstock and Lakewood. He did especially poorly in Western Portage, southern Kalamazoo, Texas, Oshtemo, and Gull Lake (all wealthy upscale areas).
The following maps show how local Republicans did in Kalamazoo County. Kalamazoo County Treasurer Mary Balkema led Republicans in Kalamazoo County with 54.7%.
The GOP average (President/Congress/Clerk/ Prosecutor/Sheriff/Treasurer) was 45.6%.
The Republican party continues to lose ground in the City of Kalamazoo. The results in the city are
The most R precinct was #4 (Knollwood). I suspect this was due to Fraternity Village supporting Trump.
The City of Portage saw many voters split tickets.
Oshtemo Township has moved left in recent years. The top of the ticket was too much for local candidates to overcome.
Oshtemo Township official candidates:
Federal Judge Gershwin Drain extended straight ticket voting in Michigan after the legislature passed a law to eliminate it. After the election, some observers claimed that straight ticket voting benefited Republicans since in some counties (e.g. Macomb) more Republicans voted straight ticket.
However, we don’t know what people would have done in its absence. In Kalamazoo, more democrats voted straight ticket (33218) than Republicans (25159). The following map shows which party had more straight ticket voters in each precinct.