"Sarah Palin was presiding over a legislature in open warfare in 2007 over what would become her singular lawmaking legacy - a substantial boost in the petroleum profits tax that would force oil companies to share billions of dollars more of their profits with the state. Palin had initially proposed a modest hike, coupled with a crucial new "progressivity" component that jacked up the rate when oil prices rose above normal market levels. But her Democratic allies in the Legislature saw the chance to do more and raised it to 25%, with Palin's enthusiastic support."