General Discussion

Yes, Senate confirmations can effectively be "revoked" or nullified through a few ways: a President can
withdraw a nomination before confirmation, the Senate can reject it outright, or a confirmed official can be removed (though this is rare and usually requires impeachment for high offices like judges/cabinet). Most commonly, confirmations end with a final vote, withdrawal by the President, or return to the President when the Senate adjourns, though the latter is often waived.