no politician can do anything about it. no single entitty can. gas prices (as well as rising food prices) are primarily the result of skyrocketing demand from emerging economies. It's not speculators or oil company greed, its a relatively constant supply mixed in with huge demand increases.
the only way for americans to alleviate the high gas prices would be to drastically reduce the tax on diesel gas and then buy diesel cars, as they do tend to be more fuel efficient.