Wilson was re-nominated without opposition at the 1916 Democratic National Convention . 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 , becoming the only Supreme Court Justice to serve as a major party 's presidential nominee . While conservative and progressive Republicans had been divided in the 1912 election between the candidacies of then-incumbent President William Howard Taft and former President Theodore Roosevelt , they largely united around Hughes in his bid to oust Wilson
1916 Republican National Convention
1916 Republican National Convention
1916 United States presidential election