Donald Trump has said he believed the controversial form of interrrogation known as waterboarding works, saying America has to "fight fire with fire."
Waterboarding, which involves water being poured over a suspect's face to mimic drowning, used as a tactic for interrogation. It's widely considered to be torture and is currently banned in America.
In an interview with ABC News, Mr Trump said that he would consult with the director of the CIA, Mike Pompeo, and Defense Secretary James Mattis on what they can legally do to fight terrorism.
The President has called for "an even playing field" in fighting radical groups to keep the United States safe.
He told the broadcaster: "If Islamic State does things no one has heard about since medieval times, would I feel strongly about waterboarding?
"We've got to fight fire with fire. I've spoken with people at the highest levels of intelligence. I've asked them whether torture works and the answer was 'Yes, absolutely.'
"I feel it works."
These remarks have been condemned by a former director of the CIA, Leon Panetta, who insisted the legalisation of waterboarding would be a "serious mistake" that would be damaging to America's image.