I'm sure some of the shows tried to get Dean but he just couldn't make it this week for some reason.
Notice none of them has booked Lieberman.
Have you seen the clip FOX has shown of Dean making a speech using a microphone, standing at a podium, reading (it seems) from notes? This speech was recent, after his 'we can't win' remarks.
My impression is that Dean was flat, there seemed to be alot of background noise and he was the lounge singer being ignored by everyone.
IOW, Dean seemed like a marked man who knows he is a marked man. I saw nervousness, apprenhension and fear in Howie's affect.
Just my impression, but curious as to how others saw it.