Sarah Palin may or may not run for president in 2012, but she is already the overwhelming favorite in the Rush Limbaugh and Glenn Beck primaries. In a new Washington Post poll, Palin beats other GOP leaders on two questions: who best represents the party's core values, and who Republicans would vote for if the presidential nomination battle were held today. But she has particular appeal to the loyal followers of Limbaugh and Beck, two of the most popular conservative talk show hosts in the country.