President Donald Trump sent Immigration and Customs Enforcement officers to some U.S. airports starting March 23 in an attempt to alleviate hours-long security wait times amid a partial government shutdown.

“We put ICE in charge, they are helping (Transportation Security Administration) agents,” Trump said at a Memphis, Tennessee, event. It isn’t clear what the officers’ roles will be. Trump also said he would consider deploying the National Guard if needed.

There’s one important difference between ICE and TSA agents: ICE agents are still being paid, but TSA agents have not been paid for more than a month.

The impasse over funding stems from federal agents’ killing of U.S. citizens Renee Good and Alex Pretti in Minnesota.…