He got an ex asst DA from Manhattan

The Postal Service is in the United States Constitution, Article I:

Section. 8.

The Congress shall have Power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and general Welfare of the United States; but all Duties, Imposts and Excises shall be uniform throughout the United States;

Clause 7:

To establish Post Offices and post Roads;

US Constitution text / archive.gov

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