[Common Tator]

Where in the Constitution does it say that a justice has to even be a lawyer or a member of the bar?

A disbarred attorney may not practice before the Supreme court, but where in the constitution does it say they can't be a Justice or Chief Justice.

[HAL9000]

Where in the Constitution does it say that a justice has to even be a lawyer or a member of the bar?

It doesn't say that, but so what? The practical reality is that the nominee will be a lawyer who has not been suspended from the bar.

If John Kerry wins the presidential electioin, Hillary Clinton will be the next Chief Justice of the Supreme Court - not Bill Clinton.