Homelessness and a housing crunch have come to define San Francisco as much as the Golden Gate Bridge or Alcatraz.
Now a new public engagement campaign is urging residents to put aside their political differences and support finding homes for more than 1,000 homeless people.
Philanthropist Daniel Lurie, founder of the anti-poverty nonprofit behind "All In," says he wants to inspire people in a city known for its liberal politics to tackle a problem mired in negativity, despair and political fighting.