[Congressional Record Volume 165, Number 7 (Monday, January 14, 2019)]
[House]
[Page H544]
From the Congressional Record Online through the Government Publishing Office [www.gpo.gov]

           By Mr. MORELLE:
        H.R. 540.
        Congress has the power to enact this legislation pursuant 
     to the following:
       Post Offices (e.g., naming post offices; creating)--Article 
     I, Section 8, clause 7 provides Congress with the power to 
     establish post offices.