Republican presidential candidate Newt Gingrich displays an etch-a-sketch during a Tea Party Presidential forum and straw poll hosted by the LSU College Republicans Thursday at Dotson Auditorium on the LSU campus in Baton Rouge, La. (AP Photo/Tim Mueller)

Question: Don't you think most presidential candidates take an etch-a-sketch approach to their candidacy, running to appeal to the extreme in the primary and then to the center for the general election?