Rasmussen Reports: Nearly half of the Republican Primary voters who support Sarah Palin say they are at least somewhat likely to vote for a third-party candidate if she does not win the GOP presidential nomination. A new Rasmussen Reports national telephone survey finds that 46% of Likely Republican Primary Voters who favor Palin say they are at least somewhat likely to vote third-party if she isn't nominated. That includes 22% who say it is Very Likely.