立憲政友會
He ran for a seat from the Tokyo 2nd District in the lower house of the Japanese Diet, under the "Rikken Seiyūkai" party in the 1930 General Election, and was elected twelve times holding a seat until his death in August 1960. Inukai was a press secretary under the first Konoe Fumimaro administration. He split with the "Rikken Seiyūkai" in 1939, joining a neutral faction led by Tsuneo Kanemitsu. He was held for questioning by the police in the Sorge Spy Incident.