Late Sunday night, a U.S. federal judge blocked the White House from sending National Guard troops from Texas and California to Portland, Ore. It also blocked the use of Oregon's own National Guard troops.

President Donald Trump has deployed troops to Los Angeles and Washington, D.C., and threatened other Democratically-led cities over what he calls "out-of-control” crime. He has also authorized the deployment of 300 national guard troops to Chicago.

MPR News host Clay Masters spoke with University of Minnesota Law Professor Jill Hasday for more context around these developments.

Press play above to listen to their conversation, or read a transcript below, edited for time and clarity.

What is the legal precedent President Trump is using to deploy the National Guard to cities like L.A.

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