The "surprise" candidate of 1948 was Stassen, a liberal from Minnesota. In 1938, Stassen had been elected governor of Minnesota at the age of 31; he resigned as governor in 1943 to serve in the wartime Navy. In 1945 he served on the committee that created the United Nations. Stassen was widely regarded as the most liberal of the Republican candidates, yet during the primaries he was criticized for being vague on many issues. Stassen stunned Dewey and MacArthur in the Wisconsin primary; Stassen's surprise victory virtually eliminated General MacArthur, whose supporters had made a major effort on his behalf. Stassen defeated Dewey again in the Nebraska primary, thus making him the new frontrunner. He then made the strategic mistake of trying to beat Taft in Ohio, Taft's home state. Stassen believed that if he could defeat Taft in his home state, Taft would be forced to quit the race and most of Taft's delegates would support him instead of Dewey. Taft defeated Stassen in his native Ohio, and Stassen earned the hostility of the party's conservatives. Even so, Stassen was still leading Dewey in the polls for the upcoming Oregon primary. Dewey, however, realized that losing another primary would end his chances at the nomination, and he decided to make an all-out effort in Oregon.