Having rejected the likelihood of the CPA's mainstream political success following the party's 1925 defeats, Garden re-embraced the Labor Party and became a supporter of Lang. While retaining his power base in the Trades Hall, he was elected an Alderman of the Sydney City Council, and a member of the executive of the Australian Council of Trade Unions. He also ran the Labor Council's radio station, 2KY. In 1931, when the Labor Party split over the Scullin government's response to the Great Depression, Garden became a leading supporter of Lang's faction, which rejected Scullin's policies and favoured repudiating Australia's debt to British bondholders.