This will only cause confusion for the Libs who thus far look at unvaccinated Trump followers as spawn of Satan, now they must chew out their mail man/woman, who many times in the past helped them win elections through nefarious means.
https://citizenfreepress.com/breaking/usps-rejects-mandatory-vax/
City carriers have their own union. APWU represents clerks, maintenance workers and truck drivers if I'm not mistaken. That's a lot of people but agree with someone who posted earlier that the union is just waiting to line their pockets and then they'll step out of the way.