President Donald Trump has made significant changes and exerted his power in his first 100 days in office. He has targeted various aspects of the government, including the economy, immigration, the justice system, and international alliances. Trump has imposed tariffs, attacked alternative energy, cracked down on illegal immigration, and taken aim at his critics and perceived enemies. He has also challenged the authority of federal judges and reversed policies on climate change. Additionally, Trump has made significant changes to various federal organizations, including the Department of Health and Human Services and the National Endowment for the Arts. The Trump administration has also been aggressive in its approach towards the press and has sought to diminish and obstruct journalism in the United States.