 He was a member of Sinn Féin and served as a justice in the Republican courts for Kildare and Wicklow from 1919.He was first elected to Dáil Éireann in 1923 as a Labour Party TD for Wicklow.Everett was one of the six TDs who left the Labour Party in 1944 because of its alleged infiltration by communists, and formed the National Labour Party.