MAJOR GARRETT: Donald Trump's criticism that ISIS rose to prominence during the Obama administration ignored President Bush's role in removing U.S. troops from Iraq. Part of Trump's argument is that the U.S. troop withdrawals created a security vacuum in Iraq that the terror group exploited. President Bush negotiated that agreement with Iraq's government and set the withdrawal date at the end of 2011. 

[...]

President Obama, elected on a platform of ending the Iraq war, enforced the Bush-era timeline. On the Hugh Hewitt radio show today, the conservative host gave Trump room to back down. 

[AUDIO IN]

HUGH HEWITT: You meant he created the vacuum, he lost the peace? 

DONALD TRUMP: No, I meant he's the founder of ISIS. 

HEWITT:  But he's not sympathetic to them. He hates them. He's trying to kill them. 

TRUMP: I don't care. He was the founder. 

[AUDIO OUT]

GARRETT: Remarks of this kind fuel G.O.P. unrest.

Previously:

CNN Caption Fact-Checks Trump's ISIS Lie

CNN's Stelter: Trump's Claim That Obama Is The Founder Of ISIS “Is A Coded Message Suggesting The President Of The United States Is A Traitor” 

CNN Reporter: Donald Trump “Just Can't Leave Some Of These More Conspiracy Theory Views Behind”