The Hill 
June 15, 2016
Donald Trump on Wednesday tweeted a link to an article that claims President Obama has indirectly supported the Islamic State in Iraq and Syria (ISIS), standing behind his remarks earlier this week that Obama might sympathize with terrorists.
— Donald J. Trump (@realDonaldTrump) June 15, 2016 
The story says Clinton’s State Department received a memo from an intelligence agent that al-Qaeda in Iraq, a group that partly splintered off to form ISIS, was the one of the “major forces driving the insurgency in Syria.”
Since the Obama administration set up a program to train Syrian rebels in its fight against Syrian President Bashar al-Assad, the Breitbart article makes the claim that the administration backed the terror group.
The Syrian opposition is filled with dozens of different factions, and the Obama administration has struggled at timed with finding reliable allies not tied to extremists. The Pentagon had made vetting potential allied rebels a piece of its “train and equip” program to provide moderate rebels with assistance. However, that program stalled  out after the Pentagon was only able to train 150 rebels, a far cry from the 3,000 goal by the end of 2015.
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