At Tulsa on March 26, 1907, during the recess before the final adoption of the constitution by the convention, Haskell held a large Democratic Party banquet at the Brady Hotel, attended by between 500 and 600 of the leading Democrats of the new state. During this banquet, the first campaigns for governor were formally inaugurated. During this evening, his friends proposed Haskell for the Democratic gubernatorial candidacy. Among the other potential candidates were Thomas Doyle of Perry and Lee Cruce of Ardmore. Haskell, like other prominent Democrats at the time, had the strong support of labor and agriculture leaders.