Uh....
....It was John McCain who put the national spotlight on Wurzelbacher, not Obama. McCain was attempting to use "Joe the Plumber" to undermine the veracity of Obama's tax cut plan. Looks like the tactic backfired.
It backfired because once again, McCain failed to properly vet an issue, just as he failed to vet his VP pick. We should all be seriously considered about this failure in judgement on McCain's part. Coupled with his legendary temper, a tendency to not adequately flush out facts sets the stage for impetuous and dangerous act. Mr. McCain clearly doesn't possess the temperment and intellectual patience to serve as our President during this very difficult time.