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Tonight on Hannity & Colmes:

Big announcement today ... Rep. Katherine Harris took many by surprise when she said she will run for U.S. Senate -- but then she added the catch -- someday. She joins us tonight to discuss her plans.

Just three days left until the Iowa caucuses (search) and suddenly the polls show a very tight race between four candidates. We'll have expert political analysis and assessment on the latest developments in the Democratic presidential race with:

• Dick Morris , FNC political analyst
• Juan Williams , National Public Radio
• Kathie Obradovich , political editor of the Des Moines Register
• Tom Miller , Iowa attorney general

And looking ahead — Which campaign strategy will secure the Democratic nomination? What do the Democratic hopefuls have planned and which message will stand out from the crowd?

We'll get answers from:

• Brian Hardwick, Lieberman deputy campaign manager
• Steve Murphy, Gephardt campaign manager
• Joe Trippi, Dean campaign manager
• David Ginsberg, Edwards communications director

All these stories and much more!

Don't miss Hannity & Colmes LIVE this evening at 9 p.m. ET!

--The Associated Press contributed to this report

-All guests and topics subject to change