On Friday, to avert another government shutdown, President Trump signed a bipartisan spending package that he argues did not include enough funding for a border wall.


To secure that funding, he declared a national emergency.


In advance of Trump’s official announcement, House Speaker Nancy Pelosi spoke out against the idea of an emergency declaration.


Is declaring a national emergency in this situation allowed? Unprecedented?


To get a better understanding of this use of executive power Amy Walter spoke to Dr. Barbara Perry, the director of presidential studies at the University of Virginia's Miller Center.

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