Complex sentence: Ahern, who supported Haughey, was rewarded with the post of Minister of State at the Department of the Taoiseach with special responsibility as Government Chief Whip and Minister of State at the Department of Defence.
Split into simpler sentences: Ahern, who supported Haughey, was rewarded with the post of Minister of State at the Department of the Taoiseach with special responsibility as Government Chief Whip. Ahern was simultaneously appointed to the position of Minister of State at the Department of Defence.