In a speech on 22 January 1958, Khrushchev officially proposed to dissolve the Machine and Tractor Stations (MTS). This reform had a particular salience on Soviet ideology. In Marxist-Leninist doctrine, cooperative ownership of property was considered a "lower" form of public ownership than state ownership. Khrushchev's proposal to expand cooperative ownership ran contrary to the Marxist theory as interpreted by Stalin. Suslov, who supported Stalin's economic policy, regarded Khrushchev's proposal as unacceptable on ideological grounds. In an election speech to the Supreme Soviet in March 1958, Suslov refused to recognise the ideological significance of Khrushchev's reform, preferring instead to focus on the reform's practical benefits in improving productivity. Unlike other Party leaders, Suslov avoided mentioning Khrushchev as the MTS reform's initiator.