The experience of the civil rights movement and the coalition of labor unions and other progressive forces suggested that the United States was changing and that a mass movement of the democratic left was possible. In terms of electoral politics, Shachtman, Harrington and Kahn argued that it was a waste of effort to run electoral campaigns as Socialist Party candidates against Democratic Party candidates. They instead advocated a political strategy called "realignment" that prioritized strengthening labor unions and other progressive organizations that were already active in the Democratic Party. Contributing to the day-to-day struggles of the civil rights movement and labor unions had gained socialists credibility and influence and had helped to push politicians in the Democratic Party towards social-democratic positions, on civil rights and the War on Poverty.