I spoke to LeBron James about bicycles on Friday.

This was a few hours before President Trump decided to go onto Twitterto challenge James’s intellect, which was more than a little absurd. James is not a Trump fan—to say the least—but this was a week in which the NBA superstar helped open a brand-new public school for at-risk children in his Akron, Ohio, hometown, pledging a University of Akron scholarship to every student who graduates.

I...