A friend of ours who voted for President Trump sent us a note recently saying that she had stopped watching the daily White House briefings of the coronavirus task force. Why? Because they have become less about defeating the virus and more about the many feuds of Donald J. Trump.

The briefings began as a good idea to educate the public about the dangers of the virus, how Americans should change their behavior, and what the government is doing to combat it. They showed seriousness of purpose, action to mobilize public and...