Following the killing of Iranian commander Qasem Soleimani last week, Iraq's parliament voted to ask the prime minister to oust US forces from the country. It comes after violent protests in Iraq against both the Iraqi government and the US embassy in Baghdad. Emma Sky, a former political adviser to the commanding general of US forces in Iraq and now at Yale University, joins Deep Dish to explain why US-Iraq relations have deteriorated so abruptly and what it means for Iran and ISIS.