Talk to their constituents? Present an energetic, cogent, case for an objective? Embarrass the lower houses for their fecklessness? Get angry? Fight? I would bet that if he got on national TV and actually fought for a point, he might just engage all those people who got him elected. Might actually stir something up and make changes. I would also bet that he does not want to stir up anything or make any changes. But I may just be getting a little cynical...
Sorry about the tenor of the previous post; I'm in a certain amount of pain and it's making me a bit grouchy.