Donald J. Trump is an American politician, media personality, and businessman who served as the 45th president of the United States from 2017 to 2021. Before entering politics, he was a real estate developer and television personality, most known for his real estate empire and hosting "The Apprentice." His presidency was marked by significant policy changes, a distinctive communication style, and frequent use of social media. He remains a prominent and often controversial figure in American politics and continues to influence the Republican Party.