Barron, who was 10 years old when his father was elected president in 2016, stayed behind with Melania in New York City when Trump was inaugurated to finish out the school year at Columbia Grammar and Preparatory School on the Upper West Side before they moved into the White House in June 2017.

Two days after the Florida Republican Party selected Barron, 18, to be an at-large delegate, Melania Trump’s office said he “regretfully declines to participate due to prior commitments.”