Republican presidential candidate Carly Fiorina expressed concern Sunday over any potential U.S. role in sheltering wayward migrants fleeing the Middle East, and slammed President Obama for decisions he made in his first term that she argued precipitated the crisis.

“We have known the crisis was coming for a very long time. This is an example of what happens when the United States fails to lead. President Obama had options in Syria three years ago and he failed to exercise any of those options,” Fiorina said on CBS’s “Face The Nation.”