Donald Trump said Wednesday that he supports waterboarding and similar interrogation techniques because “torture works” in the questioning of terrorists.

Proponents of waterboarding are careful not to label the technique as torture, which is forbidden by various international laws and treaties. President Obama’s administration discontinued the use of waterboarding because it deemed the technique to be torture. During a campaign event at the Sun City retirement community, Trump emphasized his intention to reinstate waterboarding and techniques that are “so much worse” and “much stronger.”

“Don’t tell me it doesn’t work — torture works,” Trump said. “Okay, folks? Torture — you know, half these guys [say]: ‘Torture doesn’t work.’ Believe me, it works. Okay?”