Palmer sought the Democratic Party's nomination for President in 1920. In a crowded field of candidates, he presented himself as the most American of all. Campaigning during the Georgia primary, he said: "I am myself an American and I love to preach my doctrine before undiluted one hundred percent Americans, because my platform is, in a word, undiluted Americanism and undying loyalty to the republic." Journalist Heywood Broun pretended to investigate: "We assumed, of course, from the tone of Mr. Palmer's manifesto that his opponents for the nomination were Rumanians, Greeks and Icelanders, and weak-kneed ones at that...We happened into Cox's headquarters wholly by accident and were astounded to discover that he, too, is an American. ... Thus encouraged we went to all camps and found that the candidates are all Americans." Palmer had considerable support among party professionals, but no track record as a campaigner or a vote winner. He won delegates in the Michigan and Georgia primaries but did so without demonstrating voter appeal. He also faced strong opposition from labor for his use of an injunction against striking coal miners in the fall of 1919. Though he probably never had a chance of winning the nomination, he ran a respectable third until his support collapsed on the convention's 39th ballot and the nomination shortly thereafter went to Ohio Governor James Cox.