On RealClearPolitics, they have it reported at Romney at 25, Cain and Perry at 17, not the 16 listed above and Gingrich tied with Paul at 9 and Bachman at 7 and Santorum at 2 and Huttsman at 1.
Maybe I’m missing something.
Wow: Cain ties Perry for 2nd in new WaPo/ABC poll
October 4, 2011
http://hotair.com/archives/2011/10/04/wow-cain-ties-perry-for-2nd-in-new-wapoabc-poll/
http://www.washingtonpost.com/wp-srv/politics/polls/postabcpoll_100211.html
Some are “general population” others are “registered voters”