The Arab raids from the sea and land weakened the empire, the capital city Constantinople was besieged by Arabs several times. Anatolian cities were damaged by these raids, and they began to be deserted. In the 8th century the raids increased. The fiercest attack of all against Antioch was conducted in by the Umayyad prince al-Abbas ibn al-Walid , the son of Caliph al-Walid I. Antioch never recovered and hundreds years of glory vanished.
He has to go thru the motions to act like he really gives a crap. This way he can say nothing there and drop it. After 20 investigations into HRC's e-mail, he needed to put on a show to make it look like the Dems are on another witch hunt after they take charge and give czar Grump something to distract and rile his base with.