Political Action Part 2

Oscar winner Ben Affleck addresses the media at a nightclub where he and his actor wife, Jennifer Garner, hosted an event for the Democratic presidential candidate Barack Obama, Sunday, March 16, 2008, in Boston.

Actress Jennifer Garner signs autographs outside a nightclub where she and her husband, actor-director Ben Affleck, held an event for the Democratic presidential candidate Barack Obama, Sunday, March 16, 2008, in Boston.

Lord of the Rings" actor Sean Astin, who has been campaigning for Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y., attends a rally at Mishawaka High School in Mishawaka, Ind., Friday, March 28, 2008.

Chelsea Clinton, left, daughter of Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y, Ted Danson, center, and Mary Steenbergen, at a campaign stop at the Burger Activity Center in Austin, Texas, Monday, March 3, 2008.

Actor Forest Whitaker signs autographs after speaking on behalf of Democratic Presidential hopeful Sen. Barack Obama, D-Ill at a rally on Sunday, March 2, 2008, in Tyler, Texas.

Academy Award winning actor Forest Whitaker talks with media and guests at the campaign office for Democratic presidential hopeful Sen. Barack Obama, D-Ill., in Montgomery, Ala., on Sunday, Feb. 3, 2008.

Singer Usher Raymond, left, and actress Kerry Washington stand with Democratic presidential hopeful Sen. Barack Obama, D-Ill., at a rally on the campus of South Carolina State University in Orangeburg, S.C., Tuesday, Jan. 22, 2008.

Democratic presidential candidate John Edwards shakes hands with musicians Jackson Browne and Bonnie Raitt, Nov. 19, 2007. The two singers performed for Edwards' community meeting rally held at North High School in Davenport, Iowa.

Democratic presidential hopeful John Edwards talks to supporters as actor Danny Glover, right, sits and listens Wednesday, June 6, 2007, in Bishopville, S.C.

Phil Lesh performs during a fundraising concert for presidential hopeful Sen. Barack Obama in San Francisco, on Monday, Feb. 4, 2008. Lesh reunited with Grateful Dead band mates Bob Weir and Mickey Hart for the show.

Actress Alfre Woodard attends a campaign rally in support of Democratic presidential hopeful, Sen. Barack Obama on Feb. 3, 2008, in Westwood, Calif.

Actor Tim Robbins talks to a fan prior to boarding the campaign bus of Democratic presidential hopeful, former Sen. John Edwards outside the Iowa City Public Library in Iowa City, Iowa, Wednesday, Dec. 12, 2007.

Actor Rip Torn, right, joins a small group of supporters during a private fundraiser, at the home of James B. Lee, Jr., for Sen. John McCain, left, in Darien, Conn., Monday, April 23, 2007.

Singer Ne-Yo performs at a fundraising concert for Democratic presidential hopeful Sen. Barack Obama, D-Ill., at the Gibson Amphitheatre in Universal City, Calif., near Los Angeles Monday, Dec. 10, 2007.

Actress Kerry Washington cheers during a speech by Democratic presidential hopeful Sen. Barack Obama, D-Ill., at a concert fund raiser at the Gibson Amphitheatre in Universal City, Calif., near Los Angeles, Monday, Dec. 10, 2007.