Supporters of then-outgoing U.S. president Donald Trump attack the United States Capitol to disrupt certification of the 2020 presidential election, resulting in five deaths and evacuation of the U.S. Congress. Donald Trump: Donald John Trump is an American politician, media personality, and businessman who is the 47th president of the United States. A member of the Republican Party, he served as the 45th president from 2017 to 2021. January 6, 2021. Wiki link