A key party in Pakistan’s ruling alliance claimed on Sunday to have the support of more than 300 of the 440 members of the two houses of parliament in its efforts to impeach Pervez Musharraf, the president.

Siddique-ul-Farooq, a leader of the Pakistan Muslim League-Nawaz party, said: “Our strength is now well above 300. Pervez Musharraf is history. He will have to go . . . Pakistan will soon have a new president.”