Between 4 June and 23 September 2011 , Hadi was the acting President of Yemen while Ali Abdullah Saleh was undergoing medical treatment in Saudi Arabia following an attack on the presidential palace during the 2011 Yemeni uprising .
Between 4 June and 23 September 2011 , he was the acting President of Yemen while Ali Abdullah Saleh was undergoing medical treatment in Saudi Arabia following an attack on the presidential palace during the 2011 Yemeni uprising .