In mid October, the Nixon campaign unveiled an advertisement which foreshadowed his run for Senate four years later. After stating that Nixon, at the South Pasadena debate, confronted the congressman with "a photostatic copy of his endorsement by the communist-dominated PAC", the ad stated, "Among the extreme left-wingers with whom Voorhis kept company in voting the PAC line are Helen Gahagan Douglas, Vito Marcantonio ..."[56] On October 29, the Alhambra Post-Advocate and Monrovia News-Post printed identical pieces entitled "How Jerry and Vito voted", comparing the California congressman's voting record with that of Marcantonio, a leftist New York congressman. In 1950, a similar comparison between the voting record of Marcantonio and Democratic Senate nominee Douglas, printed on pink paper, came to be known as the "Pink Sheet".[55]