The Javits brothers specialized in bankruptcy and minority stockholder suits and became quite successful. In 1933, Javits married Marjorie Joan Ringling. They had no children and divorced in 1936. In 1947, he married Marion Ann Borris, with whom he had three children. Deemed too old for regular military service when World War II began, Javits was commissioned in early 1942 as an officer in the U.S. Army's Chemical Warfare Department, where he served throughout the war, reaching the rank of lieutenant colonel. In his youth Javits had watched his father work as a ward heeler for Tammany Hall, and he had experienced firsthand the corruption and graft associated with that notorious political machine. Tammany's operations repulsed Javits so much that he forever rejected the city's Democratic Party, and in the early 1930s joined the Republican-Fusion Party and The New York Young Republican Club, which was supporting the mayoral campaigns of Fiorello H. La Guardia. After the war he became the chief researcher for Jonah Goldstein's unsuccessful 1945 bid for mayor on the Republican-Liberal-Fusion ticket. Javits's hard work in the Goldstein campaign showed his potential in the political arena and encouraged the small Manhattan Republican party to nominate him as their candidate for the Upper West Side's Twenty-first Congressional District (since redistricted) seat during the heavily Republican year of 1946. Although the Republicans had not held the seat since 1923, Javits campaigned energetically and won. He was a member of the freshman class along with John F. Kennedy of Massachusetts and Richard M. Nixon of California. He served from 1947 to 1954, then resigned his seat to take office as New York State Attorney General. Throughout his career in Congress, in the House and later in the Senate, Javits was part of a small group of liberal Republicans who were often isolated ideologically from their mainstream Republican colleagues. One scoring method found Javits to be the most liberal Republican to serve in either chamber of Congress between 1937 and 2002. Although he frequently differed with the more conservative members of his party, Javits always maintained that a healthy political party should tolerate diverse opinions among its members. He rejected the idea that either party should reflect only one point of view. Javits liked to think of himself as a political descendant of Theodore Roosevelt's Progressive Republicanism. He was strongly committed to social issues, believing that the federal government should have a role in improving the lives of Americans. During his first two terms in the House, Javits often sided with the Harry Truman administration.