Turkey launches Syria offensive after Trump pulls back troops

04:24

Today, Turkish President Erdogan announced the beginning of the military assault against the Kurds in northern Syria. This, after days of amassing tanks and military personnel on the border and an announcement by President Trump that the U.S. would pull back troops in the area. Former Navy Secretary under President Obama and former U.S. ambassador to Saudi Arabia Ray Mabus joins Ali Velshi and Stephanie Ruhle to break down whether America is walking into the worst case scenario.