Tonight on Hannity & Colmes

Joined by about 100 lawmakers on Wednesday, President Bush signed a congressional resolution authorizing him to go to war with Iraq if Saddam Hussein doesn't immediately disarm his nation's weapons of mass destruction.

How much longer will the White House give diplomacy a chance? Alexander Haig, former secretary of state, joins the debate. 

And the Beltway Sniper left behind more than shell casings at the scenes of his two latest attacks -- there were several solid eyewitnesses who got good looks at his face and his license plate.

"There was some additional information that we were able to get from [Monday] night's case," Fairfax County Police Chief Tom Manger said Tuesday, "and I am confident that that information is going to lead us to an arrest in the case."

FBI employee Linda Franklin, 47, was killed by one shot in Falls Church, Va., Monday night as she and her husband loaded their purchases from a Home Depot store into their car.Are police closer to cracking the case? Hannity & Colmes will bring you the latest.

And should illegal immigrants who live and work in the U.S. for 5 years get citizenship? Frank Sharry  from the National Immigration Forum joins the debate.

Don't miss Hannity & Colmes, the most unpredictable show on television, tonight at 9 p.m. ET

-All guests and topics subject to change