I think they'll definitely be done with the show before there would be a successor. If they changed to a Republican successor, they'd lose a large part of the fan base anyway (I would think) and wouldn't gain a new one very easily. I wouldn't worry about it.
This season could be good...I try to convince myself that every day...Yes, seasons 1 and 2 were superior to all others, but I think a few episodes from last season showed potential (the one with the Supreme Court justice and Matthew Perry comes to mind.) I'll be optimistic about it, no use not being...
Can't wait for the premiere!
Why do we play with fire?
Why do we run our fingers through the flame?
Why do we leave our hands on the stove, although we know we're in for some pain?
-tick...tick...BOOM!