U.S. National Security Advisor John Bolton on Sunday said he didn’t consider the recent Hanoi summit between North Korean leader Kim Jong Un and U.S. President Donald Trump to be a failure.

In a wide-ranging interview on CBS’s Face the Nation, Bolton said that despite the lack of an agreement at the summit, Trump had protected the U.S.’ national interests.

“I don’t consider the summit a failure. I consider it a success defined as the president protecting and advancing American national interest,” Bolton told CBS’ Margaret Brennan.

“… The president held firm to his view. He deepened his relationship with