At a campaign fundraising event on Tuesday, Sean Penn encouraged audience members to continue the tradition of progressive social movements by supporting the “principled” Norman Solomon in his bid for Congress.  David Briggs

Democratic Congressional candidate Norman Solomon, of Inverness Park, and Oscar-winning actor and director Sean Penn headlined a campaign fundraising event at McNear’s Mystic Theatre in Petaluma Tuesday afternoon, reminding a crowd of close to 300 that progressive political achievements are initiated at the grassroots level.  

Penn, who wore an open-collared dress shirt and . . .