MILLERSVILLE, Pennsylvania — Jill Biden, the first lady of the United States, gave brief but fiery remarks to women attending the Women for Biden event here in Lancaster on Sunday, warning that former President Donald Trump would be a disaster if he wins in November.

“Donald Trump is dangerous to our families and to our country,” she said while flanked by two dozen supporters at the event at Millersville University. “We cannot let him win. We cannot sit by while our freedoms slip away. We are going to walk every block and knock on every door.”