What  attorney and an American politician of the Democratic Party in Montana was was challenged in the Democratic primary by Leif Erickson in an  election in Montana ?
United States Senate election in Montana, 1946:  He was challenged in the Democratic primary by Leif Erickson, the Chief Justice of the Montana Supreme Court, and, following a close election, was narrowly defeated by Erickson. Burton K. Wheeler: Burton Kendall Wheeler (February 27, 1882January 6, 1975) was an attorney and an American politician of the Democratic Party in Montana; he served as a United States Senator from 1923 until 1947.
Burton Kendall Wheeler