That’s a multiple choice straw poll. Many times the 20’s is a winner in those. Example: http://gantdaily.com/2010/08/16/romney-palin-neck-and-neck-among-potential-gop-white-house-contenders/
Romney, Huckabee and Palin all poll in the low 20s normally. All I said was she needs to gain supporters if she has a chance to win. The eventual winner in these crowded field primaries will often win early primaries with around 30%. McCain won on the last Super Tuesday with little more than 33% of the total votes cast through ST.