From Wikipedia, United States government and policy, citing several democratic institutes:
"The United States was the most prominent liberal democracy for much of the 20th and early 21st centuries, but has undergone significant democratic backsliding and a shift toward a hybrid regime—a political system combining autocratic and democratic features.[185][186][237] There is an ongoing debate among political scientists on whether the country is more appropriately classified as an electoral autocracy or illiberal democracy, with few still considering it a robust liberal democracy.[238]"
"The United States was the most prominent liberal democracy for much of the 20th and early 21st centuries, but has undergone significant democratic backsliding and a shift toward a hybrid regime—a political system combining autocratic and democratic features.[185][186][237] There is an ongoing debate among political scientists on whether the country is more appropriately classified as an electoral autocracy or illiberal democracy, with few still considering it a robust liberal democracy.[238]"