KTVU's Dave Clark hosts today's headlines:

The president is deploying 800 National Guard troops to Washington D.C. to address what he describes as an out-of-control crime and homelessness crisis.

The president also threatened to send the National Guard to Oakland, though legal experts and local officials believe this would be difficult and unwarranted.

A federal trial is underway to determine the legality of the president's previous deployment of the National Guard to Los Angeles, which could set a legal precedent for presidential authority over state military forces.

A police operation in San Jose shut down four smoke shops for illegally selling drugs and resulted in five arrests.

Yolo County has declared a health emergency after a deadly explosion at a fireworks facility to get state and federal assistance with potential contamination.

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