Trump deploys National Guard to Washington DC: What does the law say on this?

Donald Trump took unprecedented steps on Monday, deploying the National Guard and seizing control of the police force in Washington, DC. The reason: he wants to ‘rescue the capital from crime and bloodshed’. But is the US president allowed to do so?

Trump deploys National Guard to Washington DC: What does the law say on this?
Donald Trump took unprecedented steps on Monday, deploying the National Guard and seizing control of the police force in Washington, DC. The reason: he wants to ‘rescue the capital from crime and bloodshed’. But is the US president allowed to do so?