Who will be the next Supreme Court justice?

Oldham has the profile of a serious Supreme Court prospect: he is a Fifth Circuit judge, a former Alito clerk, and fits the standard mold of a conservative appellate jurist who could be elevated if a Republican president gets an opening. That keeps him squarely in the conversation, especially if the next vacancy arises during a Trump administration or a similarly aligned White House. Among the named contenders, his résumé is probably the cleanest fit for a traditional judicial selection process, which is why he deserves to be near the top of the board.

The main constraint is that this market is not asking whether Oldham is a plausible future nominee; it is asking whether he will be the next Justice. With no current vacancy on the Court, the event depends first on an unplanned opening and then on Oldham being selected over a deep bench of alternatives. That creates a compounding problem: even a well-positioned candidate can only win if the vacancy exists, the timing works, and the White House prefers him over other judges or political figures.

Relative to the other contenders, Oldham should probably be favored within this specific group, but not by a margin that justifies a 25% outright probability in the absence of vacancy signals. James Ho is also a strong conservative legal figure, while Rao, Thapar, and Park remain credible but somewhat less prominent or less likely depending on the president’s stylistic and ideological preferences. The market appears to be assigning too much weight to Oldham’s pipeline status and not enough to the much larger hurdle that no Supreme Court seat is currently open, which keeps the true yes probability in the low teens rather than the mid-20s.