Senator Kellogg was renominated.
Lundeen was an attorney from Minneapolis, former state Representative (HD 42, 1911-1915), and former U.S. Representative (CD 05, 1917-1919). Lundeen ran for the U.S. House multiple times and would later serve two more terms as a Farmer-Laborite (AL, 1933-1935; CD 03, 1935-1937) before getting elected to the U.S. Senate (1937-1940). He was also a candidate for Chief Justice of the Supreme Court in 1924.
Titus was an attorney from Minneapolis, author, and prohibitionist.