Since he was elected again, Donald Trump has shared many "presidential" moments with his family. Barron Trump sightings, however, have been rare.

Palantir, the data analysis and technology firm whose contracts with the federal government are expanding, and Coinbase, a cryptocurrency firm that donated to the president’s inauguration, also sponsored the event. Oracle, a database company whose co-founder is a close friend of Mr. Trump’s, received a shout-out on Saturday as a sponsor.

Weather forecasts in the Washington, D.C., area call for potential scattered thunderstorms in the evening--which could put a damper on parade plans. On Thursday at the White House, President Trump sai