U.S. Const. art. II, § 4 (emphasis added). The clause treats President and Vice President separately from “all civil Officers of the United States.” There would be no basis to separately list the president and vice president as permissible targets of impeachment if they were to fall within the “civil Officers of the United States.” If that phrase were to encompasses the president and vice president, then the Impeachment Clause would say that the “President, Vice President and all other civil Officers of the United States” are subject to impeachment and removal.