Jeff Chiu, Associated Press
Isaac Chang of the Minutemen Project, left, argues with immigration supporter Lisa Roellig, of A.N.S.W.E.R., at a Minutemen rally to demand the resignation of Mayor Gavin Newsom over the San Francisco sanctuary law in San Francisco.

Issac Chang of the Minutemen Project, left, argues with immigration supporter Lisa Roellig, of A.N.S.W.E.R., at a Minutemen rally to demand the resignation of Mayor Gavin Newsom over the San Francisco sanctuary law in San Francisco.