Donald Trump has ordered the deployment of 300 National Guard members to Chicago, the latest in a string of cities where US troops have been sent.

White House spokeswoman Abigail Jackson confirmed the US president authorised the move, citing what she called "ongoing violent riots and lawlessness" that local leaders have not quelled.

"President Trump will not turn a blind eye to the lawlessness plaguing American cities," Ms Jackson said.

Chicago is the latest city in the US where Mr Trump has authorised the deployment of US troops, as it follows similar orders for Los Angeles, Washington and Portland.

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What's it like having the army on DC's streets?

Democratic governor JB Pritzker branded the move unnecessary and

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