Today on "Special Report":

President Bush (search) says presumptive Democratic rival John Kerry (search) waffles on national security issues and "is trying to have it both ways" on matters of intelligence.

Carl Cameron reports: Voters cast primary ballots in four Southern states, where John Kerry (search) now runs unopposed by any major Dem rivals.

Brian Wilson reports: President Bush (search) faces tough election year questions about U.S. economy, particularly unemployment.

Bret Baier reports: The most significant threat facing the United States comes from a loosened Al Qaeda and splintered extremist organizations intent on attacking U.S. interests, CIA Director George Tenet said Tuesday. We'll have a full report.

William La Jeunesse: A LIVE update from the road to democracy in Baghdad, Iraq.

Major Garrett reports: Who are the Special Interests and what role will they play in the presidential election?

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

— Guests and topics are subject to change