Newly discovered film footage shows FDR walking. Raw video: Franklin D. Roosevelt, who was paraplegic after contracting polio and worried about appearing vulnerable to the American public, seen ...

Roosevelt contracted polio at the age of 39, and Tobin's new book explores his battle with the illness and the ways it molded his character and influenced his rise in the Democratic Party.

Before vaccines and public health triumphs, polio was the thing that kept parents up at night. During its peak from 1948 to ...