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Good morning.

Here’s what you need to know:

Doing what no president has done

• Donald Trump is set to become the first sitting U.S. president to meet with a North Korean leader, after accepting an invitation by Kim Jong-un to discuss the future of Pyongyang’s nuclear program.

Mr. Trump’s self-confident approach to international affairs has yielded little so far, our chief White House correspondent writes. But he may find a kindred spirit in the unpredictable Mr. Kim. (They at least share a fondness for name-calling.)

“You have two leaders who believe fundamentally that they are the only people who matter,” a former U.S. diplomat said.