President Bush will make no nomination for Chief Justice (usually but not always from among the sitting Justices) nor of anyone to replace a Justice who resigns, without first consulting with that person. I don't think that Justice Thomas will be willing to go through the same meat grinder one more time, if he is nominated for Chief Justice.
I would not blame him one bit for making that decision for himself and his family. If so, then Justice Thomas is off the list for Chief Justice even though his judicial philosophy and relatively young age and good health all well qualify him for that position.
My reading of the tea leaves of the Court is that Thomas will take himself out of the running (quietly and privately) when Chief Justice Rehnquist resigns after the current term is concluded in June. My estimation is that at least two, maybe three, Justices will resign at that time.
Congressman Billybob
Click for latest column on UPI, "Incision Decision in the Senate" (Not yet on UPI wire, or FR.)
As the politician formerly known as Al Gore has said, my book, "to Restore Trust in America"