The United States presidential election of 1904 was the 30th quadrennial presidential election, held on Tuesday, November 8, 1904. Incumbent President and Republican candidate Theodore Roosevelt, having succeeded to the presidency upon the assassination of William McKinley in September 1901, was elected to a term in his own right. During the election campaign, Republicans emphasized Roosevelt's success in foreign affairs and his record of firmness against monopolies. The nominee of the Democratic Party was Alton B. Parker, Chief Judge of the New York Court of Appeals. As there was little difference between the candidates' positions, the race was largely based on their personalities; the Democrats argued the Roosevelt presidency was "arbitrary" and "erratic."