William Hague , then Leader of the Opposition taunted Blair at Prime Minister 's Question Time : `` Why not split the job in two , with Frank Dobson as your day mayor and Ken Livingstone as your nightmare ? '' William Hague , then-Leader of the Opposition taunted Blair at Prime Minister 's Question Time : `` Why not split the job in two , with Frank Dobson as your day mayor and Ken Livingstone as your nightmare ? ''