Kammala wannan jumla: A shekara ta 1916, Gainer ya kasance wakili ne ga
Babban Taron Jam'iyyar Democrat na 1916. A shekara ta 1918, Gainer ya kasance sananne sosai tare da 'yan Republican da' yan Democrat cewa ya gudu don ofishin magajin gari ba tare da hamayya ba. An ce yana daya daga cikin shahararrun jami'an gwamnati da suka taba rike mukami a jihar.