Joe Biden, the 46th president of the United States, became a frequent source of reaction clips during and after his presidency, as short moments from speeches, debates and public appearances were clipped and shared across social media. His distinctive laugh, recognisable even without video, spread as a standalone audio meme because it can signal amusement, disbelief or gentle mockery in seconds. It remains popular in political edits, commentary videos and short-form posts, where a familiar public figure's laughter adds instant context.