advice and consent of the senate. He can nominate without advice and consent, but he cannot appoint without advice and consent. It is a totally fallacious argument which has no existence in reality or in the history of the U.S.
"It provides that the president “shall nominate, and by and with the Advice and Consent of the Senate, shall appoint . . . Judges of the supreme Court, and all other Officers of the United States.” Note that the president has two powers: the power to “nominate” and the separate power to “appoint.” In between the nomination and the appointment, the president must seek the “Advice and Consent of the Senate.” What does that mean, and what happens when the Senate does nothing?"
https://www.washingtonpost.com/opinions/obama-can-appoint-merrick-garland-to-the-supreme-court-if-the-senate-does-nothing/2016/04/08/4a696700-fcf1-11e5-886f-a037dba38301_story.html?postshare=4261481037327828&tid=ss_tw