Transcript for Trump says he would meet with Kim Jong Un

Republicans pushing to repeal Obamacare. Whether pre-existing conditions are covered is the big sticking point. The president is scheduled to speak with Vladimir Putin this afternoon. Their third conversation since trump took office as the situation with North Korea is growing more tense the U.S. Missile defense system is up and running in North Korea. This comes as the north Korean leader ramps up the war of words and issues a new threat. To our chief global affairs correspondent Martha Raddatz for more on that. Good morning, Martha. Reporter: Good morning, robin. This morning both sides ramping up the tensions, the U.S. Sending b-1 bombers across north Korea as part of a training exercise and that anti-missile system is now fully operational. Overnight, the north Korean state run media with a dramatic response to those b-1 exercises saying the reckless military provocation is pushing the Korean peninsula closer to the brink of nuclear war. Nobody is safe. I mean, who is safe? The guy's got nuclear weapons. If he gets the long-range missiles we're not safe either. So, we have to do something about it and we'll see what happens. Reporter: But despite that warning the president has not ruled out a face-to-face meeting with the brutal north Korean dictator going so far as to say it would be an honor if it would be appropriate for me to meet with him, president trump told Bloomberg, I would absolutely. I would be honored to do it ABC's Jon Karl pressing the white house on those comments. This is somebody who has starved his own people, somebody that has threatened to destroy the United States. How could he be honored to meet with Kim Jong-un? Well, the president understands the threat that North Korea poses and he will do whatever is necessary under the right circumstances to protect our country from the threat that they pose. He's still the head of state. So it is sort of -- there is a Dimmick piece to this. Reporter: But the president's comments come amid possible new evidence that North Korea may be stepping up its submarine based missile testing and has warned it will increase the speed of its nuclear tests to a maximum pace. The north Koreans still have not yet conducted that sixth nuclear test but it could happen at any time. Meanwhile, president trump will talk by phone with Russia's Vladimir Putin today. Their third conversation as we said since president trump took office. George. Okay, Martha, thanks very much.

This transcript has been automatically generated and may not be 100% accurate.