Democratic Convention Outlook
A look at the impact of Democratic Presidential hopeful Barack Obama's choice of running mate and how Democrats will try to define their candidate and unify the party at their convention this week.
founder of the Daily Kos political blog, columnist for "Newsweek" and "The Hill," and author of "Taking On the System."
president and CEO of the Center for American Progress, former chief of staff to President Clinton, and author of "The Power of Progress."
Senior Fellow, Governance Studies at the Brookings Institution and a former policy advisor to President Clinton and many past presidential candidates.