At a state dinner given by Pierce, Benjamin first met Secretary of War Jefferson Davis, whose wife Varina described the Louisiana senator as having "rather the air of a witty bon vivant than of a great senator". The two men, both ambitious for leadership in the South and the nation, formed a relationship that Evans describes as "respectful but wary". The two had occasional differences; when in 1858, Davis, by then a Mississippi senator, was irritated by Benjamin's questioning him on a military bill and suggested that Benjamin was acting as a paid attorney, the Louisianan challenged him to a duel. Davis apologized.