Can the supreme court be deadlocked?

Has there ever been a case where the supreme court was deadlocked? Say, one of the justices had to recuse himself for a case because he knew the defendant, or maybe the case came up while there was an open vacancy on the court. What would happen if the remaining eight justices split 4-4? Has this even happened?

Yes, there have been cases. In the case of a tie, the lower court’s decision will stand.

If they deadlock 4-4 (for the reasons you stated above), the lower appellate court ruling stands. From the ubiquitous Wiki:

What would happen in the event of a 4-4 tie in one of the rare cases where the Court has original jurisdiction? Has this ever happened?

They can put off hearing the case until the vacancy is filled.

[QUOTE=ElvisL1ves]
They can put off hearing the case until the vacancy is filled.
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What if one judge had to recuse due to conflict of interest and there was no foreseeable change in the makeup of the court?

[QUOTE=Spartydog]
What if one judge had to recuse due to conflict of interest and there was no foreseeable change in the makeup of the court?
[/QUOTE]

No Supreme Court justice has to recuse himself from any case. It’s a matter of personal ethics to do so.

However, the Court ordinarily does not sit to hear an original jurisdiction case ab novo– normal procedure is to appoint a Special Master to sit as a “trial court” of sorts, obtaining the factual evidence and arguments. I believe he ordinarily recommends a ruling based on the evidence and law before him – which of course the justices are not bound to abide by.

My hunch, however, is that if the prospect of a 4-4 tie on an original jurisdiction case loomed:

  1. The justice who was expected to recuse himself would sit, making every effort to judge equitably and not in accord with his personal interests; or

  2. If my presumption about a recommended judgment is correct, the judgment of the Special Master would stand as the court’s judgment, in like manner to what happens on ties in certiorari cases.

[QUOTE=Spartydog]
What if one judge had to recuse due to conflict of interest and there was no foreseeable change in the makeup of the court?
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Picture a black-robed version of Rock-Paper-Scissors.

[QUOTE=Spartydog]
What if one judge had to recuse due to conflict of interest and there was no foreseeable change in the makeup of the court?
[/QUOTE]

Russian Roulette, baby.