Benghazi and Daesh both occurred outside of the country, so calling them "division in America" is more than a little rich.
Benghazi would have been prevented, if Secretary of State Hillary Clinton had ordered military support from Sicily, since support was 2 hours away. Instead, Obama blamed the whole thing on a dumb video (that got 17 total views for the Arabic version prior to the attack, and trying to make the public event forget about the date that it happened on, and it was spontaneous attacks on numerous US embassies and consulates over the Middle East and North Africa), and promptly arrested the filmmaker.
Withdrawing from Iraq, and the assassination of Muammar Gadaffi (prick that he was), caused a massive void which led to the rise of ISIS (which now has less than 1% of its territory due to heavy artillery and aircraft attacks in the past year, as well as Russian, British, Syrian rebel, and Kurdish support).
Absolutely none of which has anything to do with divisions in America. Do try to keep up with what's actually being talked about. ---
Kill 1 man: You are a murderer. Kill 10 men: You are a monster. Kill 100 men: You are a hero. Kill 10,000 men, you are a conqueror!