Ted Cruz ripped Obama today for saying that the Islamic State is not Islamic, calling it nutty:

Listen when you have President Obama telling the nation that the Islamic State isn’t Islamic, that’s just nutty. That’s not reasoned, interesting foreign policy debate, that’s just nutty! They are explicitly an Islamic Caliphate.

They have stated their intention to wage jihad and to forcibly convert or murder anyone they define as infidels, which is most of the rest of the world.