You Can't Beat Love (1937)

Never one to turn down a dare, wealthy but eccentric lawyer Jimmy Hughes takes his faithful butler Jasper and gets a job digging ditches to fulfill a bet he made with two reporters. In his new job he meets Trudy Olson, the daughter of the city's mayor, who is running for re-election. A misunderstanding with Trudy results in Jimmy announcing his intention to run against the mayor. This winds up getting him involved with crooked cops, gamblers, corrupt politicians, and greedy businessmen.