Today on "Special Report":

Carl Cameron reports: We'll bring you the latest news from Wisconsin as decisions are made and votes are cast. Will the Badger State be 'do or die' for Howard Dean (search)?

Anita Vogel reports: The marathon of gay marriages -- marriages that defy state law -- ensues in San Francisco. We'll have  the story.

GUEST PREVIEW: Douglas Kmiec, professor of constitutional law at Pepperdine University weighs in on the legal ramifications of gay marriages taking place in California.

Major Garrett reports: Will Ralph Nader (search) jump into the presidential race? We'll have a full report.

Bret Baier reports: The latest news out of Afghanistan.

Jim Angle reports: The president makes a patriotic visit in Louisiana. Get the details.

Details on those stories and more on Special Report with Brit Hume at 6 p.m. ET.

— Guests and topics are subject to change