Guests: Journalist David Frum, comedian Eddie Izzard, author Gore Vidal, former governor of Vermont Howard Dean, businessman Russell Simmons

Topics: Madrid bombings, renewal of the Patriot Act, young voters, voting machines

Guests: Sen. Norm Coleman, talk radio's Al Franken, reporter Liz Marlantes, author Gore Vidal, and basketball's Charles Barkley.

Topics: Terror alerts, Voting irregularities, Iraq, Darfur, gay Republicans

Guests: Filmmaker Ron Howard and novelist Gore Vidal

Topics: Bill conducts one-on-one interviews