Before any major legislation lives or dies on the Senate floor, it has to survive a number and that number comes from a small, technically nonpartisan office most Americans couldn't find on a map. We dig into how the CBO's cost estimates have been weaponized, gamed, and quietly lobbied to kill bills that had majority support, protect ones that didn't, and why the methodology inside that building matters more to your life than almost any single vote cast by your representative.