at the time: Rambunctious, left-wing Representative Vito Marcantonio of New York has long been "majority leader," the "party whip," and the total membership of the American Labor Party in Congress. He has labored alone–a situation perfectly okay with Vito, for he likes to consider himself a modern David jousting with the "big interests". In March 1948, he continued public speaking in New York City on topics that included Palestine, thanks to sponsorship that included the ALP and the Progressive Citizens of America. Isacson joined fellow New York ALP representative Vito Marcantonio and Democrats in voting unsuccessfully against an "unprecedented" $200,000 appropriation to the House Un-American Activities Committee. In April 1948, he became the first Congressman ever to be denied a United States passport by the State Department when he attempted to go to Paris to attend a conference as an observer for the American Council for a Democratic Greece, a Communist front organization, because of the group's role in opposing the Greek government in the Greek Civil War. Issuing him a passport was judged not to be "in the interests of the US", so he was denied a passport under the Passport Act of 1926 (currently codified at et seq.), which allows the Presidential administration to deny or revoke passports for foreign policy or national security reasons at any time. Henry A. Wallace's Progressive Party welcomed Isacson's election. In September 1948, Isacson stumped for Wallace in New York City with fellow ALP candidates Marcantonio (Harlem), Irma Lindheim (Queens), and Lee Pressman (Brooklyn). "Representative Isacson declared that President Truman would learn during the campaign that he could not hide the responsibility of the Democratic party for the bi-partisan assault on the liberties of the American people. He declared that the Taft-Hartley Act was passed with the help of a majority of Democratic Representatives, that four out of five Democrats in Congress voted for the peacetime draft and for continuance of the Committee on Un-American Activities." In the fall of 1948, he ran for reelection against Isidore Dollinger. Neither he nor other ALP candidates received the endorsement of the New England Regional CIO-PAC. Like other contenders, Dollinger lumped Isacson among other ALP leaders (e.g., Vito Marcantonio) as a Communist. (In February 1948, Pravda newspaper hailed Isacson's election as a victory for progressive forces in Europe and America, while Pravda commentator Boris Leontiev predicted worldwide defeat for imperialists.) Isacson lost to Dollinger 44,257