Those remarks weren’t just vintage Trump braggadocio. They’re likely also smart politics, as they provide an opening to win back some suburban voters that fled from him toward Biden in 2020. Sixty-seven percent of suburban residents were vaccinated as of August, according to a late summer NBC News poll. That was below the 79 percent of urban residents who got the vaccine, but well above the 52 percent of rural residents, where support for Trump runs deep. Even Biden gave credit to the Trump administration for the development of the Covid vaccine and for getting a booster shot.It’s unclear that...