Mayor Brandon Johnson urged Chicagoans to “rise up in this moment” against President Donald Trump’s mass deportation effort, even as he acknowledged Wednesday that the deployment of the military to help carry out immigration raids in Los Angeles could happen here.

Johnson refused to say precisely what he would do if mass demonstrations in Chicago — perhaps as soon as Saturday’s “No Kings Day of Defiance” protests — provoke an L.A.-style federal response.

The mayor would only say that he is concerned enough to have spoken directly with Gov. JB Pritzker and Cook County Board President Toni Preckwinkle about the possibility that Trump might activate the Illinois National Guard to protect U.S. Immigration and Customs Enforcement agents making arrests.

“This is a necessary fight for all of us to be able to push back. Whether we use the courts or whether we continue to protest and raise our voices, dissent matters in this moment,” the mayor said at his weekly City Hall news conference.