ISIS spokesman Abu Hassan al-Muhajir, considered a potential Abu Bakr al-Baghdadi successor, was also killed in Syria, a senior State Department official confirmed to Fox News on Monday. Al-Muhajir was considered a “number two” to al-Baghdadi, and a potential successor, according to the official. The senior State Department official said Al-Muhajir was killed in Aleppo province in a separate attack by U.S. forces. Hours after U.S. Special Operations forces raided al-Baghdadi’s compound in North West Syria, the top Kurdish leader for the Syrian Democratic Forces, Gen. Mazloum, the main U.S. ally against ISIS tweeted the following: “Following the previous ops,...