The Trump administration refers to the period when Donald Trump served as the 45th President of the United States from January 20, 2017, to January 20, 2021. His administration was marked by significant policy changes, including tax cuts, deregulation, and a focus on immigration reform. During this time, the administration also emphasized an "America First" approach in foreign policy, withdrawing from international agreements like the Paris Agreement and the Iran Nuclear Deal. The administration faced various controversies, including two impeachments, but maintained a strong base of support among many voters.