"Looks like Trump and Melania were arguing over something," a social media user wrote after the couple's rare appearance together.

Natalie Harp, Trump’s executive assistant, was in the president’s spectator box along with first lady Melania Trump

American driver wins in a dominant performanceDC Mayor Muriel Bowser served as grand marshalKyle Kirkwood gave the Freedom 250 an American winner, racing to his second victory of the IndyCar season on

IndyCar's D.C. street race pits a "red state" sport against the bluest city—but the divide isn't all that it seems.

The two-day racing extravaganza is expected to draw upwards of 140,000 spectators, the city’s mayor has said