The number of prominent Republicans strongly endorsing vaccination efforts has grown this week. As Damon Linker notes, something is going on, though the impetus for the shift remains unclear.
Was there an agreement that it would be in the interests of Americans given the recent Delta variant surge in cases? I'm skeptical of that explanation because the interests of Americans haven't mattered much to many Republicans who resisted even the simplest inconveniences to protect Americans from the pandemic. Has there been a shift in perceived political self-interest with the virus surging, especially in low-vaccination-rate Red states? That seems more plausible.
Whatever the reason, I'm glad to see this happening. We have the means to end this thing, but not the unified political will. Perhaps the Republican change of heart is inadequate and comes too late because of the now deeply entrenched resistance to vaccination, but again, I welcome this public shift in attitude.