Erickson was
Richland County District Attorney from 1936 to 1938 and was an
Associate Justice of the
Montana Supreme Court from 1939 to 1945. He was a delegate to the Democratic National Conventions in
1948,
1952, and
1956. In
1944, he ran for
Governor of Montana, winning the
Democratic primary and advancing to the general election, where he opposed
Republican incumbent Gov. Sam C. Ford. Ford defeated Erickson by a wide margin to win his second term as governor. Erickson challenged
incumbent Sen. Burton K. Wheeler in the
Democratic primary in
1946, and though he defeated Wheeler in an upset, he lost the general election to Republican
State Senator Zales Ecton. He ran for governor once more in
1948, but finished third in the Democratic primary behind former
Montana Attorney General John W. Bonner and Arthur Lamey. From 1956 to 1958 he was chairman of the
Montana Democratic Party and from 1962 to 1973 he was a member of the
Democratic National Committee. ==References==