I'm completely ripping off this post from
Greg Mankiw's blog, who pulled the bulk of his text from the Washington Times, but it can't be beat. It tells us much of what need to be known about what, and who, sets the policy agenda and why. I'd like to see further analysis of economic policy over the years and see how much has been established due to electoral need versus economic need. Of course this argues against democracy so we must tread lightly.
From the Washington Times:
John McCain, the presumptive Republican presidential nominee who should know better, was the first presidential candidate to endorse the gas-tax holiday for the summer driving season. Reportedly, the idea originated with a political pollster, not among Mr. McCain's economic advisers.