The vice president “is on the threshold of doing what’s never been done in this country,” Brown said in an interview with The Standard.
The powerful former House speaker endorsed Board of Supervisors incumbents but did not weigh in on the hotly contested mayor’s race.
The endorsement from the Democratic Party offers significant momentum for Breed, who has faced an uphill battle during the mayor’s race.
The expense reported by Farrell’s ballot measure campaign caused critics to accuse him of using the separate entity to dodge contribution limits.