War. He supported the Neutrality Acts of 1935, 1936, and 1937, and also every amendment aimed at making those acts more stringent. During the Spanish Civil War, Holt declared himself in favor of "strict, mandatory neutrality." He opposed increases in military spending, threatening to filibuster the 1938 Naval Expansion Bill. Holt did not favor American participation in international organizations, voting against World Court membership, and not supporting membership in the League of Nations. He opposed reciprocal trade agreements and "faithfully represented" West Virginia's pro-tariff glass industry. During the Winter War, despite being sympathetic to Finland, Holt voted against a loan to that country. Holt opposed the Selective Training and Service Act of 1940 (also known as the Burke-Wadsworth Act), which instigated peace-time conscription, actively participating in the long (six weeks) and often vitriolic debate on the act; the act eventually passed, 58–31, Holt voting against. These activities did not make Holt popular with his constituents; in his 1940 bid for renomination, Holt came in third. After his Senate term expired, on January 3, 1941, Holt continued living in Washington, D.C., supporting himself as a lecturer and author. He was an active antiwar lecturer, most often supported by the sponsorship of the America First Committee. He attended dozens of antiwar rallies across the United States, usually as the featured speaker. This speaking tour ended after the attack on Pearl Harbor, and the America First Committee was dissolved. Holt's foreign policy views remained the same, writing in 1942: "Our fight is not over. We must stand guard to see that the internationalists ... are not allowed to determine the future of our great country. They would commit us to everlasting wars everywhere." Holt received a high level of media attention during his Senate years and was the subject of hundreds of political cartoons from across America. Holt unsuccessfully sought the Democratic gubernatorial nomination in 1944 and the Democratic nomination for United States Senator in 1948. He switched to the Republican Party in 1949, and was an unsuccessful Republican candidate for election to the Eighty-second Congress in 1950. In 1952, Holt again ran for governor, and earned 48% of the vote. In 1954, he was elected to the West Virginia House of Delegates. Holt's political career ended where it started, and he died of cancer while in office on February 8, 1955, at age 49. He was interred in Macpelah Cemetery in Weston,