Following the completion of the second World War, Vandenberg was elected to his fourth and final term in the U.S. Senate, defeating his Democratic challenger, James H. Lee, by earning over two-thirds of the vote in the 1946 election. In 1947, at the start of the Cold War, Vandenberg became chairman of the Senate Foreign Relations Committee. In that position, he cooperated with the Truman administration in forging bipartisan support for the Truman Doctrine, the Marshall Plan, and NATO, including presenting the critical Vandenberg resolution. As chairman of the Foreign Relations Committee, he asserted that "politics stops at the water's edge," and cooperated with the Truman administration in forging bipartisan support. Francis O. Wilcox, first chief of staff of the Foreign Relations Committee, recalled Vandenberg's Senate career as an exemplar of bipartisanship in American foreign policy. In October 2000, the Senate bestowed a rare honor on Vandenberg, voting to include his portrait in a "very select collection" in the United States Senate Reception Room. In 1940 and 1948 Vandenberg was a "favorite son" candidate for the Republican presidential nomination. In 1950 Vandenberg announced that he had developed cancer. He died on April 18, 1951, and is buried in Oakhill Cemetery in Grand Rapids. The former Vandenberg Creative Arts Academy of the Grand Rapids Public Schools was named after him. In September 2004, a portrait of Vandenberg, along with one of Senator Robert F. Wagner, was unveiled in the Senate Reception Room. The two new portraits joined a group of highly distinguished senators including Henry Clay, Daniel Webster, John C. Calhoun, Robert M. La Follette, Sr., and Robert A. Taft. Portraits of this group of senators, known as the "Famous Five," had been unveiled in March 1959. A statue dedicated to Vandenberg was unveiled in May 2005 in downtown Grand Rapids, on Monroe Street, north of Rosa Parks Circle. Senator Vandenberg is memorialized in a Michigan historical marker for the Arthur Hendrick Vandenberg/Vandenberg Center in Grand Rapids  The Vandenberg Room (formerly The Grand Rapids Room) at The University of Michigan is named in his honor of Senator Vandenberg's second wife, Hazel. Vandenberg Hall at Oakland University is named in his honor. In southeast Michigan, three Arthur H. Vandenberg Elementary Schools were named after him - one in Redford, another in Southfield, and the third in Wayne which closed in 2016. Arthur H. Vandenberg Jr. (1907–1968), the Senator's son, worked for the Senator for more than a decade.