connection between Senator, hancock, and mary (spoilers)

I feel like the film set up this interesting connection between Sutherland and Pollan's character along with Gedricks, but then the film totally dismisses it throughout the rest of the film. I lossed hope for the movie when senator gets shot and we dont know what happens to bev (meg ryan).the beginning of the film had meinto it and then I was completely thrown off by ryans character and their relationship that takes up the majority of the film along with hancock and mary.
I was sitting through the film to see senator meet up with mary at some point. I don't know why I justthought that there would be more to it then what movie presented. I think its sucks that ended with kiefer dying, mary and hancock are together at the films close, and its like wtf, you killed senator and mary doesnt really agknowledge it.
I don't know I just feel that the film is missing a great deal of character devolpment and plot,due to its good cast, it had the potential to be something more memorable.