Cairo , Egypt ( CNN ) -- Egypt 's top political parties have agreed to nominate a member of the Muslim Brotherhood as the nation 's next parliament speaker , the first time in decades that an Islamist would hold that post . The Brotherhood 's Freedom and Justice Party won more than 40 % of the seats in recent elections and is expected to lead the country 's first parliament chosen since the ouster of former President Hosni Mubarak . The FJP-led alliance nominated its secretary-general , Mohamed al-Katatni , as parliament speaker . Al-Katatni , described as a moderate on the Brotherhood 's website , was detained by Mubarak 's state security forces together with FJP leaders Essam El-Erian and Mohamed Morsi , the chairman of the FJP . The parliament , which will be seated later this month , must appoint a 100-member panel to write a new Egyptian constitution . Presidential elections are set for June . Liberals fear that electoral gains for Islamists will steer Egypt down a rigid path away from democracy . Morsi tried to reassure Egyptians that the new constitution `` will be drafted without exemption of any stakeholders or exclusion of any parties , forces or currents . '' `` We continue the march of the peaceful revolution , the Egyptian revolution of January 25 , which has achieved some of its objectives and as yet continues to achieve remaining ones , '' he said . `` There is no doubt that the parliamentary election results were expressive of all Egyptians and their free will , the new parliament , too . '' The agreement , signed Monday by six leading political parties , also allows the hardline Al Nour party and the liberal Al Wafd party to nominate two deputy speakers . But Al Wafd was not present at the meeting and did not sign the agreement . `` We were not informed of about the meeting and will announce our decision after our board meeting on Thursday , '' Bahaa Abu Shaka , Al Wafd 's deputy chief , told CNN . The new parliament convenes a year after popular revolts erupted , eventually leading to Mubarak 's downfall . The longtime dictator is on trial on charges of corruption and ordering the deaths of hundreds of protesters . The Supreme Council of the Armed Forces has led Egypt 's government since Mubarak 's fall . It has said it will hand over power to a new government once one is in place . But the transition has not been quick or transparent enough for some Egyptians . A series of protests in Cairo last month resulted in violent and sometimes deadly clashes between demonstrators and soldiers . Gen. Mohamed Hussein Tantawi , who heads the Supreme Council , is expected to address the new parliament , according to the Morals Affairs Military Department .
The Muslim Brotherhood 's political arm won more than 50 % of parliamentary seats . The man elected as president is described as moderate . The new parliament convenes a year after the Egyptian protests began . Some Egyptians fear a more restrictive state with Islamists in power .