CHICAGO, IL - JANUARY 29: Demonstrators protest President Donald Trump's executive order which imposes a freeze on admitting refugees into the United States and a ban on travel from seven Muslim-majority countries at the international terminal at O'Hare Airport on January 29, 2017 in Chicago, Illinois. Similar protests have been staged at airports nationwide over the past two days. (Photo by Scott Olson/Getty Images)

CHICAGO, IL - JANUARY 29:  Demonstrators protest President Donald Trump's executive order which imposes a freeze on admitting refugees into the United States and a ban on travel from seven Muslim-majority countries at the international terminal at O'Hare Airport on January 29, 2017 in Chicago, Illinois. Similar protests have been staged at airports nationwide over the past two days.  (Photo by Scott Olson/Getty Images)