Colbert gets more specific than saying Congress. It’s GOP in Congress that blocks any action supported by an overwhelming majority of Americans. Something like 90% of Americans want responsible gun regulation and background checks, and the GOP blocks it.

The filibuster wouldn’t be invoked here if enough GOPers gave a damn to end cloture and bring things to a floor vote. They refuse to do so because they have made the tactical decision that maximizing the body count is preferable to shutting the flow of revenues to gun manufacturers who profit from the unfettered sales of all manner of guns and ammo and body armor gear to civilians.