http://en.wikipedia.org/wiki/Harry_S._TrumanThe Korean War was to remain a stalemate until a cease fire took effect on July 27, 1953 under President Dwight D. Eisenhower.
The war and dismissal of MacArthur made Truman so unpopular that he did not seek a third term in the 1952 election -- even though he would have been the last President eligible to do so.
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In 1950 the Senate, led by Estes Kefauver investigated numerous charges of corruption among senior administration officials, some of whom received fur coats and deep freezers for favors. The Internal Revenue Service was involved. In 1950, 166 IRS employees either resigned or were fired, and a number were facing indictments from the Department of Justice on a variety of tax-fixing and bribery charges, including the Assistant Attorney General in charge of the Tax Division. When Attorney General Howard McGrath fired the special prosecutor for being too zealous, Truman fired McGrath. Historians agree that Truman himself was innocent and unaware--with one exception. In 1945 Mrs Truman became the recipient of a new, expensive, hard-to-get deep freezer. The businessman who provided the gift was the president of a perfume company and, thanks to Truman's aide and confidante, General Harry Vaughan, received priority to fly to Europe days after the war ended, where he bought new perfumes. On the way back he "bumped" a wounded veteran being flown home. Disclosure of the episode in 1949 humiliated Truman, and he responded by vigorously defending Vaughan, who was involved in multiple influence peddling scandals from his White House office.
Charges that Soviet agents had infiltrated the government bedevilled the Truman administration and became a major campaign issue for Eisenhower in 1952. In 1947 Truman set up loyalty boards to investigate espionage among federal employees. In 1947-1952, "about 20,000 government employees were investigated, some 2500 resigned “voluntarily,” and 400 were fired. Truman himself later admitted that the loyalty program was the biggest single mistake of his presidency.