“A distinct minority of Americans, supported by a distinct minority of elected officials, are keeping us from turning the corner,” Biden said. “These pandemic politics are making people sick, causing unvaccinated people to die.”

Biden’s forceful posture reflected a calculus that far more Americans will support his action than will be drawn to the visceral anger that some on the right directed at his announcement — evidenced, in his view, by the fact that a supermajority of the country has already been vaccinated.

It was also driven by self-interest, as Biden tries to defend his own job performance on the issue most important to voters…

Speaking directly to the fears of Americans who have received a dose, Biden said, “For the vast majority of you who’ve gotten vaccinated, I understand your anger at those who haven’t gotten vaccinated. I understand the anxiety about getting a breakthrough case.” He pledged that his administration was moving forward swiftly to secure booster doses of the mRNA vaccines as soon as this month to provide more durable protection against the more transmissible delta variant.