I have already posted my thoughts on why JRB would be an excellenet strategic choice for Bush to make:
It'd be good poker of the highest order as
1) It'd force the Dems to attack a black female
2) Who was re-elected by large margins in the well-known bastion of right-wing extremism known as Kah-lee-four-nyah.
3) Who they have voted for mere months ago to confirm to a seat on the D.C. Circuit Court.
1 and 2 just make them look bad when they attack.
3 makes them look either stupid or hypocritical; they'll make verbal pretzels in the air explaining why she suddenly became a maybe from a yes.
She's the right woman at the right time.