Jill Biden Is Chasing the President’s Most Elusive Campaign Promise: Unity

As the president tries to prove that bipartisanship is still possible, the first lady is not standing on the sidelines.

WASHINGTON — The summer was a rough one for President Biden.

Another pandemic surge prompted Mr. Biden, a veteran moderate, to attack Republican governors and embrace vaccine mandates. A bipartisan infrastructure deal hung in the balance. The American withdrawal from Afghanistan, during which 13 service members were killed in a terrorist attack, was criticized as violent and haphazard.

But the events left another Biden feeling bruised.