Trump constitutes a clear break with past presidencies. Gallons of ink have been spilled on Trump's controversial use of social networks, paying close attention to his statements on both domestic and foreign policy. Yet, less attention has been devoted to the impact the Trump administration had on constitutional and administrative law doctrines, and to the most recent trends in the U.S. government policymaking under Trump. The present work fills the gap by providing a non-partisan and comprehensive analysis of Trump's first two years in office. The book is divided into two parts. The first part addresses the most recent trends in the U.S. Government, by covering topics as varied as the relationship between the Presidency and Congress, states, federal agencies, the Supreme Court. The second part then moves to illustrate the most recent trends in policy-making, by covering topics such as environmental law, fiscal policy, health care reform, and foreign policy.