In June, the 1916 Republican National Convention chose Hughes as a compromise between the conservative and progressive wings of the party. Hughes defeated John W. Weeks, Elihu Root, and several other candidates on the third ballot of the convention. While conservative and progressive Republicans had been divided in the 1912 election between the candidacies of incumbent President William Howard Taft and former President Theodore Roosevelt, they largely united around Hughes in his bid to oust Wilson. , Hughes remains the only current or former Supreme Court justice to serve as a major party's presidential nominee. Wilson was re-nominated at the 1916 Democratic National Convention a few days later, without opposition. While Wilson's Vice President Thomas R. Marshall was re-nominated, Hughes's running mate was Charles W. Fairbanks, who had been Theodore Roosevelt's vice president in his second term.