Brothers and Sisters

Plot:

Pam's sister informs her she's moving to Dallas, unaware that Kathryn's also trying to move in on her husband, while Mark keeps trying to move in on Pam. Meanwhile, Bobby tries to find solace in something other than a bottle and Cliff can't get over the self-blame for the death of his mother. Donna begins to realize the serious effects of JR moving in on a senatorial seat in Washington when Dave talks to her about it because he feels threatened by the notion.