The Senate's not working because it doesn't take any work to stop it from working -- and that's what the Republicans are interested in doing. Current rules make stopping the Senate from doing its work the easiest thing in the world to do. That's got to change.
Besides blocking legislation that enjoys majority support from coming to a vote, the filibuster lies at the heart of a number of disruptive and anti-democratic practices in the Senate, including the so-called "secret hold." The secret hold helped delay Senate action for so long that time ran out for a climate bill.