US President Donald Trump is refusing to give up his signature campaign promise of building a wall along the border with Mexico.
Democrats won't give him the more than five billion dollars he wants to build it.
The stalemate has led to the second-longest partial US government shutdown in history.
In response, the President went on prime-time television to argue that the barrier is needed to stop what he calls a growing humanitarian and security crisis.
So, is there a crisis at the U.S.-Mexico border?
Sahar Aziz - Founding Director of the Center for Security, Race and Rights and professor of Law at Rutgers University.
David Ward - Director of the National Association of Former U.S. Border Patrol Agents.
Lincoln Mitchell - Political Analyst and Professor at Columbia University.
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