In his new book for The American Presidents Series, the National Constitution Center’s President and CEO Jeffrey Rosen argues that William Howard Taft was our most judicial president and presidential Chief Justice, and explores Taft’s crucial role in shaping how America balances populism with the rule of law. In this exclusive book launch held at the Constitution Center on March 20, Mr. Rosen was interviewed by Judge Douglas Ginsburg of the U.S Court of Appeals for the D.C. Circuit, who calls Taft “the most under-appreciated constitutional figure since George Mason.”