Complex sentence: The IIP has been condemned by some Sunni Arab politicians for its participation in the Iraqi political process, including by al-Qaida in Iraq leader Abu Mu'sab al-Zarqawi in December 2005 for their participation in the general election.
Split into simpler sentences: The IIP has been critisized by some Sunni Arab politicians for its participation in the Iraqi political process. The leader of Al-Qaida in Iraq, Abu Mu'sab al-Zarqawi, condemned IIP in December 2005 for their participation in the general election.