Red, White & Royal Blue is a romantic comedy novel written by Casey McQuiston. The story revolves around the son of the U.S. president and the Prince of Wales, who are forced to fake a friendship to improve international relations. As they spend more time together, their fake friendship turns into a real romantic relationship, leading to a scandal that threatens their families' reputations. This heartwarming and humorous novel explores themes of love, friendship, and identity, with a refreshing and modern twist on the classic enemies-to-lovers trope.