The power of the voting bloc Pollsters are pointing to women, youth, the faithful and the unmarried as important voters in the next presidential election.9:06 a.m.
John Della Volpe: Founder and managing partner of SocialSphere Strategies. He is also director of polling at Harvard Institute of Politics.
David Hill: Writes a weekly column on polling and campaigns for The Hill, a newspaper for and about the United State Congress. He is also director of Hill Research Consultants, a public opinion and marketing research firm.
The politics of science Though science is often thought of as objective knowable truth, one journalist is concerned about the way politics influences how science is done and how it is shared with the world.10:06 a.m.
Chris Mooney: Washington correspondent for Seed Magazine and the author of "storm World: Hurricanes, Politics, and the Battle Over Global Warming," and "The Republican War Against Science."