Chicago has no sovereign right to its own immigration policy

Chicago is a “sanctuary city” in which law officers are forbidden from cooperating with federal agencies to enforce immigration laws.  - Washington Examiner

This is all the more reason why National Guard troops may be necessary to carry out the democratic will for illegal immigrants to be deported.
President Donald Trump won the election in November partly because of the Democrats’ utter failure to enforce immigration law...

• “There is no reason a president should send military troops into a sovereign state without their [sic] knowledge, consent, or cooperation,” Gov. JB Pritzker (D-IL) said recently.

But, contrary to the governor’s assertion, Illinois is not a sovereign state. 

• If Trump believes local law enforcement policies endanger federal agents and that a National Guard presence would help protect them, he has the authority to deploy them, whether Pritzker likes it or not...
• Federal law is clear that states have no sovereign right to set their own immigration policies.

When former President Barack Obama refused to enforce immigration laws, former Arizona Gov. Jan Brewer signed a state law that made it a crime for illegal immigrants to be in Arizona without registering with the federal government. 

• The Supreme Court held that the policy violated the Constitution’s supremacy clause, which gives the federal government the highest authority over certain policy areas, including immigration...