Roosevelt in the Amazon

After Theodore Roosevelt lost the American presidential election of 1912, he decided to explore an unknown tributary of the Amazon called the River of Doubt.It was a trip that nearly killed both Roosevelt and his son, Kermit.Witness brings together first-hand accounts of the trip, with the help of Candice Millard, author of River of Doubt - Roosevelt's Darkest Journey.PHOTO: Roosevelt on the campaign trail in 1912 (Getty Images).