Coming soon : love affair between Warren Harding and his mistress . The 15-year affair ended before Harding became president in 1921 . `` There 's that sex steamy side to these letters , '' he told CNN in an interview Monday . ` Harding 's letters show the politician 's passionate love . A book on the affair examines its possible historical impact .
Coming soon : love affair between Warren Harding and his mistress . The 15-year affair ended before Harding became president in 1921 . Harding 's letters show the politician 's passionate love . A book on the affair examines its possible historical impact .