McCain's (lack of) expertise + McCain is a Republican = Obama wins on the economy
Well, not so fast. The Republicans, believe it or not, may indeed have a winner on the issue of offshore drilling. See, with gas prices rising and the Mideast oil supply diminishing, it seems logical to think that tapping plentiful oil reserves off the American coastlines would solve a bunch of our problems. The real problem, however, is that drilling offshore won't lower costs, at least not initially.
This is to say nothing, of course, on the effect that offshore drilling would have on our environment. This is a golden opportunity to wean ourselves off of oil, not look for more of it.
Think about it: Do you really want to see an oil rig while you lounge on a previously pristine strip of Florida coastline?