Sen. John McCain pushed back strongly against Donald Trump's call for the United States to go "beyond waterboarding" in interrogations of terror suspects. 

"I would absolutely authorize something beyond waterboarding and believe me, it will be effective," Trump told ABC's George Stephanopoulos.

"You have our enemy cutting heads off of Christians and plenty of others, by the hundreds, by the thousands," he said, with Stephanopoulos then asking whether the U.S. could defeat ISIS by "being more like them."

"Yes," Trump answered. "I'm sorry. You have to do it that way."

McCain, sitting next to his daughter Meghan McCain on Outnumbered, emphasized that torture does not yield good information. 

"When someone is subjected to torture - this is a near-death experience - they will tell that person who is administering that anything they want to hear," said McCain, adding that the U.S. received a lot of bad information from these tactics.

Andrea Tantaros pointed out that former Attorney General Michael Mukasey claimed that waterboarding led to useful information.

McCain said that Mukasey and other former Bush administration officials were not telling the truth, arguing that military leaders did not back up their claims.

"We voted 93-3 in the U.S. Senate to prohibit this kind of behavior. ... We want a president who will just violate the law? I don't think so. I think we've had enough of that with Barack Obama," he said.

McCain said the only justification for a technique like waterboarding would be in a true life or death situation, like if a nuclear weapon was about to be detonated. 

Watch the discussion above.