President Trump hasn’t shut the door on the possibility that a North Korea summit could still happen — but for now, he’s warning North Korea not to try anything.

Behind the scenes: A White House official told Axios’ Jonathan Swan: “They literally threatened nuclear war. …[N]o summit will work under these circumstances, when they’re literally threatening our people.”

For now, it’s back to the days of “fire and fury.”

• Here’s what Trump said this afternoon at the White House: “Our military, which is by far the most powerful anywhere in the world … is ready if necessary.”
• South Korea and Japan are “ready should foolish or reckless acts be taken by North Korea.”
• But, but, but: “It’s possible that the existing summit could take place or a summit at some later date. Nobody should be anxious. We have to get it right.”

Two views on where we’re headed, from Axios Expert Voices:

• The case for pessimism, from Richard Haass, president of the Council on Foreign Relations: “There was no way the summit could have succeeded … Better that the summit was postponed than to have ended up in dramatic failure.”
• The case for optimism, from Tony Blinken, former deputy secretary of state in the Obama administration: “Both leaders still likely want this meeting to happen.”

Go deeper:

• Trump cancels summit with Kim Jong-un
• South Korean leader “perplexed” by Trump’s summit decision
• Pompeo: North Korea ignored U.S. requests on summit prep

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“You have to stand proudly for the national anthem or you shouldn’t be playing, you shouldn’t be there — maybe you shouldn’t be in the country.”

No, it's not because the baseballs are “juiced” now. It's because they're “flying greater distances through the air because of a decrease in wind resistance,” the New York Times reports — the conclusion of a Major League Baseball study that tried to figure out why there were so many home runs between 2015 and 2017.

Why it's happening: “We cannot find a single property that we can measure that would account for decreased drag,” said the chairman of the study, Alan Nathan, a professor emeritus of physics at the University of Illinois.

The bottom line: ¯\_(ツ)_/¯