Question: Who did an American lawyer and Democratic Party politician from Helena, Montana run against in an election in Montana that took place on November 4, 1930 ?
Sentence (from "United States Senate election in Montana, 1930"): Incumbent United States Senator Thomas J. Walsh, who was first elected to the Senate in 1912, and re-elected in 1918 and 1924, ran for re-election.
Relevant evidence: No