Donald John Trump, born June 14, 1946, became the 45th president of the United States in 2017, after he defeated Democratic rival Hillary Clinton in the general election of 2016. His unpredictable tenure saw the beginning of a trade war between the US and China. The trade war persisted after he left office following a 2020 defeat to Joe Biden. In 2024 he mounted a third campaign, defeating Biden's then-VP, Kamala Harris, to earn a second term as president.