As blue cities push back on President Donald Trump’s tactic of deploying the National Guard to fight crime, the Trump administration has floated the idea of using the Insurrection Act to justify sending federal troops to American cities.

Former President Barack Obama lambasted President Donald Trump’s deployment of National Guard troops into Chicago, arguing that a president sending U.S. troops into American cities “against their own people” is “inherently corrupting.”

As some judges challenge the Trump administration's representation of conditions on the ground, the legal and political stakes of the debate are multiplying.

The city is a majority Black epicenter for civil rights, where residents remember the Guard responding during more than one period of unrest.

The Trump administration deployed 14 soldiers from California's National Guard to Illinois to train troops from other states.