It's an unnecessary tool. As three or four of us have pointed out, there is already a mechanism that does what you want... WITHOUT an unelected government employee exercising his sole will.
And also, it's not in the constitution. Which doesn't say much about SCOTUS, but it does list specific times when it has original jurisdiction. And your "proposal" is not included in there.
"The Judicial Power shall extend to all Cases, in Law and Equity, arising under this Constitution, the Laws of the United States, and Treaties made, or which shall be made, under the Authority, to all Cases affecting Ambassadors, other public Ministers and Consuls; to all Cases of admiralty and maritime Jurisdiction; to Controversies to which the United States shall be a Party; to Controversies between two or more States; between a State and Citizens of another State; between Citizens of different States; between Citizens of the same State claiming Lands under Grants of different States, and between a State, or the Citizens thereof, and foreign States, Citizens or Subjects." (Article III, Section I, United States Constitution)
So. Your proposal is unconstitutional.