Donald Trump roiled the US presidential campaign once again, with the jaw-dropping assertion that Hillary Clinton and President Barack Obama 'founded' the IS group. Addressing supporters at a rally in Fort Lauderdale, Florida, the real estate tycoon said the jihadist group is 'honoring President Obama. He is the founder of ISIS,' Trump said, using a term for IS. 'He's the founder of ISIS, okay?' he added. 'He's the founder! He founded ISIS. And I would say, the co-founder would be 'Crooked Hillary Clinton,'' Trump shouted, over cheers and applause from the crowd.