Republicans and GOP-leaning independents say Texan has best chance to defeat Bam in 2012 in ABC/WaPo poll.
Perry 30
Romney 20
Palin 8
Gingrich 5
Bachmann 4
Paul 4
Santorum 1
Cain 1
Huntsman 1
And: Moderate and conservative GOPers split between Romney and Perry.
