But you don’t have to go back centuries to understand federal action is neither illegal nor unconstitutional. Helping localities promote vaccination was part of the March COVID relief package and such efforts have been underway since April. Besides, what’s actually wrong with going door-to-door to inform people where, how and why they should get vaccinated? People go door-to-door all the time. The Census Bureau does it (and that is in the Constitution). Campaigns do it, as do churches, charities and activist groups. Supporting local officials and volunteers to promote vaccination is a perfectly reasonable response to an ongoing pandemic — with new strains popping up — that has cost America more than 600,000 lives and trillions of dollars. You can just say: “Not interested.”