Brothers Nawaz Sharif (left) and Shahbaz Sharif attend a press conference in Lahore in 2009.(Photo: AFP/VNA)

The Pakistan Muslim League-Nawaz (PML-N), which enjoys a majority in parliament, nominated Shahbaz Sharif, chief minister of Punjab province, as a Prime Minister candidate and ex-oil minister Shahid Khaqan Abbasi as interim Prime Minister.