In the 2007 election, Mayor of Manila Lito Atienza was barred from seeking a fourth consecutive term; his son Ali was named nominee of the Liberal Party; then senator and former mayor Alfredo Lim was named nominee of the Pwersa ng Masang Pilipino (PMP), Kapayapaan, Kaunlaran at Katarungan, Lim's own party and the United Opposition.