He ran for Parliament in Tønsberg in 1912, but was not elected. He was the editor-in-chief of the Larvik newspaper Nybrott and the Hamar newspaper Demokraten before taking over Vestfold Arbeiderblad in 1920. When his Labour Party split in 1921, Løkke joined the more right-wing Social Democratic Labour Party.
He chaired the party chapter in Tønsberg fra 1923 to 1925.
He edited Buskerud Social-Demokrat from 1921 to 1923 and Vestfold Social-Demokrat from 1923 to 1925. He died in 1937.
He joined his first trade union in 1906, and in the city of Tønsberg he was a board member of the local Union of Iron and Metalworkers from 1908 to 1912 and local Labour Party leader from 1910 to 1913.