In August 1958, Karl-August Fagerholm's third cabinet, a coalition government led by the Social Democratic Party (SDP) and including Kekkonen's party Agrarian League, was formed. The Communist front SKDL was left out. This irritated the Soviet Union because of the inclusion of ministers from SDP's anti-Communist wing, namely Väinö Leskinen and Olavi Lindblom. They were seen by the Soviet Union as puppets of the anti-Communist SDP chair Väinö Tanner, who had been convicted in the war-responsibility trials. Kekkonen had warned against this but was ignored by SDP. The Night Frost Crisis, as coined by Nikita Khrushchev, led to Soviet pressure against Finland in economic matters. Kekkonen sided with the Soviet Union, working behind the scenes against the cabinet; Fagerholm's cabinet consequently resigned in December 1958. The Finnish Foreign Ministry ignored United States offers for help as promised by Ambassador John D. Hickerson (see Country-studies.com, U.S. Embassy in Finland website, U.S. State Department website) in November 1958. The crisis was resolved by Kekkonen in January 1959, when he privately travelled to Moscow to negotiate with Khrushchev and Andrei Gromyko. The crisis hurt the freedom of the parties to compose coalition governments, so that after the crisis, Kekkonen was seen as the only authority for deciding which parties can participate in cabinets.