I read so much blogospheric debate on the future of the Republican Party. As for the 2012 Republican nominee, at Intrade.com, Romney is still leading the pack in the 31 range, and Palin remains in the 17-18 range. John Thune is very much underdiscussed, given that his chance of winning the nomination seems to be about as large as Palin's.
As Robin Hanson would say, politics isn't about policy. Of course if you think these numbers are wrong, go and improve them.