Trump raises NATO exit again, faces resistance in Congress

US President Donald Trump has again raised the idea of leaving NATO during a private lunch, continuing his criticism of the alliance.

Any withdrawal would require approval from Congress, a step Senate Majority Leader John Thune said would be difficult.

“We got an awful lot of people who think that NATO is a very critical, incredibly successful post-World War II alliance,” Thune said.

“I think in the world today, you need allies,” he added.