Much-anticipated judgement centers on efforts by Trump administration to use troops to aid immigration crackdown

A judge on Thursday temporarily blocked the deployment of the national guard in Chicago in a much-anticipated ruling about efforts by the Trump administration to use troops to help enforce immigration policy and also battle what it says are high crime rates.

During arguments about the case, lawyers for the state of Illinois had called the sending of national guard soldiers to the city – which was opposed by Chicago and state political leaders – a constitutional crisis.