Khomeini and his supporters worked to suppress some former allies and rewrote the proposed constitution. Some newspapers were closed, and those protesting the closings were attacked. Opposition groups such as the National Democratic Front and Muslim People's Republican Party were attacked and finally banned. Through popular support, Khomeini supporters gained an overwhelming majority of the seats in the Assembly of Experts which revised the proposed constitution. The newly proposed constitution included an Islamic jurist Supreme Leader of the country, and a Council of Guardians to veto un-Islamic legislation and screen candidates for office, disqualifying those found un-Islamic.