Hillary and Mitch came to an understanding so she could have her own appointment. This is well known.There have been 103 prior cases in which — like the case of President Obama’s nomination of Judge Garland — an elected President has faced an actual vacancy on the Supreme Court and began an appointment process prior to the election of a successor. In all 103 cases, the President was able to both nominate and appoint a replacement Justice, by and with the advice and consent of the Senate. This is true even of all eight such cases where the nomination process began during an election year. By contrast, there have been only six prior cases in which the Senate pursued a course of action that — like the current Republican Plan — deliberately sought to transfer a sitting President’s Supreme Court appointment power to a successor. In all six such cases, there were, however, contemporaneous questions, not present here, about the status of the nominating President as the most recently elected President. The historical rule that best accounts for senatorial practices over the entirety of U.S. history is thus the following: While the Senate has the constitutional power to provide advice and consent with respect to particular Supreme Court nominees and reject (or resist) particular candidates on a broad range of grounds, the Senate may only use this power to deliberately transfer a sitting President’s Supreme Court appointment powers to a successor in the highly unusual circumstance where the President’s status as the most recently elected President is in doubt.
Given this more than two-century long tradition, the Senate Republicans’ current plan marks a much greater departure from historical precedent than has thus far been recognized. There is, however, still a further question whether the historical rule we uncover reflects a mere senatorial tradition, which should govern internal senatorial practices of fair dealing, or has further ripened into a constitutional rule that should inform the best interpretation of constitutional text and structure. In either case, the consequences of the plan are far more serious than its architects could have originally understood. After describing both possibilities, we suggest that Senate Republicans should rethink their plan so as to avoid these newly exposed historical, pragmatic and constitutional risks. Instead of continuing forward, the Senate should do what it has always done in similar past circumstances. It should proceed to full Senate consideration of Judge Garland or any other nominees that President Obama submits in a timely manner.
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2752287
Fortunately, she didn't win.