A federal judge has moved to halt President Donald Trump's deployment of National Guard troops to Washington, a temporary legal setback to Trump's efforts to send the military to US cities over objections of local leaders.

US District Judge Jia Cobb, an appointee of former President Joe Biden, temporarily blocked the Trump administration from deploying National Guard troops to enforce the law in the nation's capital without approval from its mayor.

However, she paused her ruling until December 11 to allow the administration to appeal.

The legal fight is playing out alongside several others across America as Trump presses against longstanding but rarely tested constraints on presidents using troops to enforce domestic law.

White House spokeswoman Abigail Jackson said in a statement that

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