Here’s a Senator Bracken scoop from TV Guide:
Is Castle done with the Sen. Bracken-Beckett story? — Nina
ADAM: Not if the show wants to keep leading lady Stana Katic happy. “I think that story needs really great closure,” she tells us of Beckett’s series-long search for her mother’s killer. “They did a really nice job of developing this ‘sleeping dragon’ story, and [the end] of that should be done with justice to all of the years that they spent developing that.” The good news? Creator Andrew W. Marlowe insists that he has plans to bring Jack Coleman’s dirty politician back — but only when the perfect story comes up.
Both Katic and Marlowe have been hinting that Jack Coleman’s naughty Senator would be back, but it looks like it will be some time before we see him on Castle again. Fingers crossed!
Source: Mega Buzz on TV Guide