Marijuana activists in California are gearing up this week for a flurry of statewide protests during President Obama's October 25 visit to the Bay Area, and then again for the election in the first week of November. The recent federal crackdown, in other words, is galvanizing the weed community. "We're pushing them back," said Stephen DeAngelo, founder of Harborside Health Center in Oakland. The medical cannabis club has started a legal defense fund to fight a recent $2.5 million IRS bill. "We're already beginning to regain momentum from this outrageous travesty of a federal assault."