A mystery was afoot in conservative Washington circles this week after an apparent mix-up made for an unexpected jab at President Trump. Let us set the scene.

The venue: a Washington hotel where Turning Point USA, the conservative youth organization, was hosting a conference for high school students, where Mr. Trump spoke on Tuesday.

The décor: a presidential seal on the onstage screen, a fitting background for a speech by the president of the United States.

The problem: The presidential seal was not, in fact, the presidential seal at all, as The Washington Post reported. Instead of the customary bald eagle, the altered image showed a double-headed eagle, similar to that featured in Russia’s national emblem. Instead of arrows, the eagle clutched a set of golf clubs in a talon. It appeared as the president emerged onstage.