Denver Mayor Mike Johnston dodged a response to President-elect Donald Trump’s “border czar,” Tom Homan saying he would jail the mayor if he does not comply with federal deportation orders of illegal immigrants.

Johnston, a Democrat, has been one of a few officials who have picked a fight with Homan over the incoming Trump administration’s plans for mass deportations. The Denver mayor was asked directly about if he would go to jail to block some deportations on CNN’s Erin Burnett Outfront Tuesday, to which he instead said that he would work with the administration on deporting violent criminals.