Michael Barone: Will we get tired of so much winning?

It has been a week full of wins for Donald Trump — at least from the perspective of those who share Trump’s view of the way the world works, and perhaps even for some who don’t.

Exhibit A is Trump’s summit meeting with North Korean dictator Kim Jong Un in Singapore. In their self-congratulatory joint statement, the two leaders stated that North Korea committed to “work toward complete denuclearization of the Korean peninsula” and the United States agreed “to provide security guarantees” to North Korea.