Kamala Harris is extremely liberal — and the numbers prove it

Vice President Kamala Harris served in the Senate between 2017 and 2021, providing a legislative record that allows her to be located along the left-right continuum that dominates legislative behavior in the Congress. Based on her roll call voting record, Harris is the second-most liberal Democratic senator to serve in the Senate in the 21st century.

How do we know? For more than 40 years, political scientists have used roll call votes cast by members of Congress, combined with advanced statistical methods...