Nawaz Sharif (l) and Asif Ali Zardari were winners in February's elections The leaders of the two parties that won Pakistan's elections have signed an agreement on a coalition government. Asif Ali Zardari, widower of ex-premier Benazir Bhutto, and ex-PM Nawaz Sharif called on President Pervez Musharraf to convene parliament immediately. February's parliamentary elections delivered a crushing defea