Tom Davis appears on the Colbert Report, preclude to statewide run?

Last night rep Tom Davis, republican of Virginia appeared on Stephen Colbert’s “better know a district.”  This is important for two reasons.  First of all it increases Davis’ visibility amongst younger voters, and as a possible nominee for the 2008 senate seat it will certainly help.  Another thing is that he was the first republican congressman to appear on the show in a LONG time.  Usually they’re too afraid of looking silly to go on, not that he didn’t look silly.  Stephen insinuated Davis was having an affair with DC “rep” Eleanor Holmes Norton because Davis was in favor of Norton’s bill to give DC a seat in the House.  The question is whether this is Davis’ way of getting ready to run for John Warner’s seat should he retire, a sign he won’t run for the seat, or Davis just wanted to have some fun.