re: #189 Belafon
One of the jobs of the Legislative branch is oversight of the other two. Having the Senate not actively doing that is dereliction of its responsibility.
Another is holding hearings on Presidential nominees (like judges and justices). I know that was a long, long time ago, but he really did refuse to do that for years.
Yet another is considering the bills the House passes. Which seems to be severely delayed for some strange reason.