Tom Homan and Texas Gov. Greg Abbott served meals to troops stationed in Eagle Pass and Edinburg as part of Operation Lone Star.

President-elect Donald Trump’s border czar Tom Homan vows to instill harsh consequences on sanctuary city leaders who are threatening to block immigration authorities from carrying out their planned mass deportation — telling them plain and simple: “Don’t test us.”

Homan’s comments come after Mayor Mike Johnston said he was willing to go to jail to stop possible mass deportation efforts under the incoming Trump administration.