Why did William Howard Taft get a cabbage thrown at him?

William Howard Taft had a cabbage thrown at him during a 1912 campaign event in California because of the political tensions and opposition he faced from supporters of Theodore Roosevelt, his former ally. The incident symbolized the deep divisions within the Republican Party at the time, as Taft was running for re-election against Roosevelt, who had formed a third party. The cabbage, often seen as a symbol of disdain, reflected the frustration and discontent of some voters towards Taft's presidency.