Who is the only US president to have won the Pulitzer Prize?

Profiles in Courage is a 1957 Pulitzer Prize-winning volume of short biographies describing acts of bravery and integrity by eight United States Senators throughout the Senate's history. The book profiles senators who defied the opinions of their party and constituents to do what they felt was right and suffered severe criticism and losses in popularity because of their actions.

The book was published on January 1, 1956, to lavish praise. It became a best seller and in 1957 was awarded the Pulitzer prize for biography. It established Kennedy, till then considered promising but lacking in gravitas, as one of the Democratic party's leading lights, setting the stage for his presidential nomination in 1960.