Immigration and Customs Enforcement agents will deploy to airports on Monday to help ease security lines amid the Department of Homeland Security shutdown, White House border czar Tom Homan said Sunday.

President Donald Trump on Saturday threatened to deploy ICE agents to airports as the shutdown drags into its second month, creating headaches for travelers moving through hours-long Transportation Security Administration security lines.

Homan confirmed that ICE will be deployed on Monday during an appearance on CNN’s “State of the Union.”

“We will be at the airports tomorrow, helping TSA move those lines along,” Homan said, adding that ICE will assist in areas like guarding exit doors to relieve TSA agents for screening travelers. “We’re simply there to help TSA do their jobs in areas that don’t need their specialized expertise.”

Homan said the details of the plan are still under discussion, but will be decided by Monday morning when ICE agents deploy.