Rumors of a coup d'état were also brewing. A report of the U.S. Senate Foreign Relations Committee said that shortly after the 1969 Philippine presidential election, a group composed mostly of retired colonels and generals organized a revolutionary junta to first discredit President Marcos and then kill him. As described in a document given to the committee by Philippine Government official, key figures in the plot were Vice President Fernando Lopez and Sergio Osmeña Jr., whom Marcos defeated in the 1969 election. Marcos even went to the U.S. embassy to dispel rumors that the U.S. embassy is supporting a coup d'état which the opposition liberal party was spreading. While the report obtained by the NY Times speculated saying that story could be used by Marcos to justify Martial Law, as early as December 1969 in a message from the U.S. Ambassador to the U.S. Assistant Secretary of State, the U.S. Ambassador said that most of the talk about revolution and even assassination has been coming from the defeated opposition, of which Adevoso (of the Liberal Party) is a leading activist. He also said that the information he has on the assassination plans are 'hard' or well-sourced and he has to make sure that it reached President Marcos.