Addressing an auditorium filled with many students expressing support for another candidate, Matt Gonzalez, running mate of presidential hopeful Ralph Nader, spoke yesterday about reasons not to vote for Barack Obama. Gonzalez, who was announced in February as Nader's vice presidential choice on the independent ticket, spent most of his time speaking to the Political Science 179 class about what he called Obama's "troubling" voting record. "I'm picking on Senator Obama ... because your professor told me this is a pretty strong Obama crowd," Gonzalez said. "It says something about a candidate that can stand in front of you and...