President Donald Trump has justified sending National Guard troops into U.S. cities as part of an effort to combat crime and support local law enforcement. The crackdown is currently focused in Washington, D.C., but the president has said he wants to continue that crackdown in places like Chicago and New York City. 

Alex Wagner, adjunct professor in Maxwell's Washington programs, speaks with LiveNOW from FOX about the deployment of the National Guard in D.C., and other U.S. cities (interview begins at 3:30).

“The Guard's role in law enforcement is unclear. The Guard's training in law enforcement across America is minimal at best...The vast majority of these people have absolutely no training or understanding in law enforcement, but they do know what the law of war is, and they're trained in the law of war,” says Wagner.

“And when you put the Guard in American cities where the enemy is their own community, that is something that strains the relationship between their commanders in chief—which is their governors—and the White House and the administration,” he says.