When Ronald Reagan moved into the White House, he ordered Calvin Coolidge’s portrait to be moved next to Lincoln’s and Jefferson’s in a place of high honor. Most Americans today have forgotten Coolidge’s legacy; but Reagan knew well that Coolidge’s programs in the 1920s presaged the conservative movement toward smaller government and reduced taxes. Historian Robert Sobel looks at Coolidge’s impressive record as president—his four tax cuts, his yearly budget surplus, his success shrinking the debt—in this expansive biography of a forgotten American icon.