KSČ anti-reformists, therefore, made efforts to convince the Soviets that the danger of political instability and "counterrevolution" did indeed exist. They used the Kaspar Report, prepared by the Central Committee's Information Department, headed by Jan Kašpar, to achieve this end. The report provided an extensive review of the general political situation in Czechoslovakia as it might relate to the forthcoming party congress. It predicted that a stable Central Committee and a firm leadership could not necessarily be expected as the outcome of the congress. The party Presidium received the report on 12 August. Two Presidium members, Kolder and Alois Indra, were instructed to evaluate the report for the 20 August meeting of the Presidium. Kolder and Indra viewed the Kašpar Report with alarm and, some observers think, communicated their conclusions to the Soviet ambassador, Stepan Chervonenko. These actions are thought to have precipitated the Warsaw Pact invasion of Czechoslovakia. As the KSČ Presidium convened on 20 August, the anti-reformists planned to make a bid for power, pointing to the imminent danger of counterrevolution. Kolder and Indra presented a resolution declaring a state of emergency and calling for "fraternal assistance." The resolution was never voted on, because the Warsaw Pact troops entered Czechoslovakia that same day (in the night of 20 August-21).