[Congressional Record Volume 164, Number 40 (Wednesday, March 7, 2018)]
[House]
[Page H1476]
From the Congressional Record Online through the Government Publishing Office [www.gpo.gov]

            By Mr. BUCK:
        H.R. 5198.
        Congress has the power to enact this legislation pursuant 
     to the following:
       Article I, Section 8, clause 7 grants Congress the power to 
     establish Post Offices and post Roads.