In the early twenty-first century, migration became one of the most powerful and polarizing forces in global politics. In the United States, debates over borders, belonging, and national identity reshaped political discourse and helped fuel a new wave of authoritarian populism. Borders of Power offers a timely and incisive examination of how migration narratives transformed democratic politics during the Trump era. Blending political analysis, historical context, and cultural insight, this book explores how fear, identity, and sovereignty became central themes in public life and were mobilized to redefine power in America. From campaign rhetoric and media framing to policy decisions and grassroots movements, the book reveals how migration debates became a battleground for competing visions of democracy, citizenship, and national identity. It also situates these developments within a broader global trend, showing how similar dynamics have emerged across Europe and beyond. Clear-eyed and thought-provoking, Borders of Power is essential reading for anyone seeking to understand the political transformations of the past decade, and what they mean for the future of democratic societies.