Potbelly is running a limited-time government shutdown promotion where government workers can buy one sandwich and get one free at all Potbelly locations through Sunday, January 27, 2019.

In order to take advantage of the offer, government workers must show a Federal Government ID to redeem the deal.

While the offer is valid nationwide, interestingly enough, D.C. has the second largest concentration of Potbelly shops in the country.

Image – Potbelly