28%

According to CBS.

Bush is now down to his immediate and extended opportunistic family (except Noelle who is a definite "No Opinion"); the Cheneys; Mitch McConnell and spouse; two-thirds of NRO's the Corner; half of Little Green Morons and the Duggar family.

But he could go lower as Jeffrey, Jimmy, Jimmy Bob, Jimmy Jeffrey Bob, and Jimmy James Jerry Jeffrey Jimmy Duggar are wavering; as they are not sure about even fighting the war of ideas over here rather than fighting over there.