This year's presidential election is said to be the closest in 40 years -- so close that some political prognosticators predict one candidate could win the popular vote, while the other could win the electoral college vote and the presidency. Diane and her guests explain how the electoral college system works, and talk about how the tight race is making voter turnout efforts more important than ever for the political parties.
professor and director of the Center for Congressional and Presidential Studies at American University
covered national politics for the "Washington Post" from 2001 to 2006, now a special correspondent for "The New Republic."
lecturer at the Graduate School of Journalism at the University of California, Berkeley