The campaign and elections were marked by violent incidents; on election-day the opposing parties hijacked numerous polling places and each issued their own "election results". Cárdenas himself was unable to vote on election day because the polling place closed early to prevent supporters of Almazán from voting. Since the government controlled the electoral process, the official results declared Ávila Camacho as winner; Almazán cried fraud and threatened revolt, trying to set up a parallel government and congress. Ávila Camacho crushed Almazán's forces and assumed office in December 1940. His inauguration was attended by US Vice President-elect Henry A. Wallace, who was appointed by the U.S. as a "special representative with the rank of Ambassador Extraordinary and Plenipotentiary" for Mexico, indicating that the U.S. recognized the legitimacy of the election results. Almazán also attended Ávila Camacho's inauguration.