What did Donald Trump do today?

He quickly and unambiguously denounced something he found unacceptable.

At 6:00 A.M. EDT, Kenneth Frazier, CEO of the drug manufacturer Merck, resigned from Trump's "American Manufacturing Council." Frazier, who is black, said that "America's leaders must honor our fundamental values by clearly rejecting expressions of hatred, bigotry and group supremacy." Though he did not specifically mention Trump's ambiguous statements on the terrorist attack in Charlottesville, which have pleased only the white supremacists they were notionally directed at, Frazier did say that resigning from the Trump panel was "a matter of personal conscience."

At 6:54 A.M., Trump responded on Twitter: "Now that Ken Frazier of Merck Pharma has resigned from President's Manufacturing Council, he will have more time to LOWER RIPOFF DRUG PRICES!" Apparently still seething nine hours later, Trump again attacked Merck in a subsequent tweet. 

Less than a month ago, Trump called Frazier one of the "great, great leaders of business in this country" and praised Merck for its part in creating "thousands of American manufacturing jobs."

Who cares?

• A president who only cares about a business leader's opinion when he agrees with it does not care about the opinions of business leaders.

• A president who only values the things an African-American has to say when it flatters him does not value the things African-Americans have to say.

• A president who gets angrier about a peaceful expression of dissent than a terrorist murder, and responds more quickly and forcefully to it, gives comfort to terrorists.