It’s hard to imagine the Senate without the filibuster, but now the non-profit group Common Cause is filing a lawsuit against the Supreme Court claiming that the notorious senate procedure is, in fact, unconstitutional. The Takeaway talks with the plaintiff’s attorney Emmet Bondurant and filibuster scholar Gregory Koger to find out where the filibuster came from, what good it’s done us, and whether it’s going to stick around.