What criteria will President Obama take into account is selecting his first nominee to the Supreme Court? I think four factors will be especially important to him.

1. High level of intellectual ability. As a professor of constitutional law, Obama fully understands the complexity of a Supreme Court justice's responsibilities and the importance of analytical fire-power both to meet those responsibilities and to persuade colleagues. He will want his legacy to include the appointment of Supreme Court justices of whom he can be proud. A very high level of intellectual ability is certainly a prerequisite to that. Anyone can cast a vote. Obama will want much more than that.

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