SCOTUS could block Trump executive order

The Supreme Court is considering the legality of President Trump's executive order on birthright citizenship. This order aims to stop automatic U.S. citizenship to children born on American soil whose parents are undocumented or temporarily residing in the United States. The court recently heard oral arguments in this case. LiveNOW's Christina Evans interviews Dylan C. Penningroth, a historian and professor at the University of Berkeley, on the history of birthright citizenship in America.