“Last Week Tonight” host John Oliver blasted the National Rifle Association Sunday night for its effectiveness in preventing new gun control legislation from moving, just a week after a mass shooting in an Orlando nightclub killed 50 people, including the shooter.

“To be fair to the NRA, it’s not surprising they take a hard line on gun control legislation,” Oliver said. “They’re an advocacy group, it’s what they’re supposed to do. What is shocking is just how successful they’ve been at it.”