PASOK and New Democracy largely alternated in power until the outbreak of the government-debt crisis in 2009. From that time, the two major parties, New Democracy and PASOK, experienced a sharp decline in popularity. In November 2011, the two major parties joined the smaller Popular Orthodox Rally in a grand coalition, pledging their parliamentary support for a government of national unity headed by former European Central Bank vice-president Lucas Papademos. Panos Kammenos voted against this government and he split off from ND forming the right-wing populist Independent Greeks.