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In page Harold Wilson:

"

Gaitskell's leadership was weakened after the Labour Party's 1959 defeat, his controversial attempt to ditch Labour's commitment to nationalisation by scrapping Clause Four, and his defeat at the 1960 Party Conference over a motion supporting unilateral nuclear disarmament. Bevan had died in July 1960, so Wilson established himself as a leader of the Labour left by launching an opportunistic but unsuccessful challenge to Gaitskell's leadership in November 1960. Wilson would later be moved to the position of Shadow Foreign Secretary in 1961, before he challenged for the deputy leadership in 1962 but was defeated by George Brown.[citation needed]