Actually your assessment of the program is wrong as evidenced by Rush's comments about the writers of the past series.........
If you have to be so anal-retentive as to try and figure out the politics of any actors/actresses participating in any entertainment venue, you sir have a major problem!
But then again, that seems to be a trait of internet political junkes who have no other life than their computer and TV's........
Oh, by the way, 24 was my favorite show and I already had read about the far left history of the Sutherland family long before the show aired.
I personally had to overcome the Sutherland family political history in order to watch the show though. I started watching by the 4th year then got seasons 1-3 to catch up on borrowed DVDs.