The Republican National Committee is sending around this Associated Press photo of overall-clad McCain supporters standing outside an Obama rally, clutching plungers and a sign proclaiming "I Am Joe The Plumber":
And the man on the left, plunger thrust high in the air, is Charlie Smith – the National Chairman of the College Republicans.
UPDATE: Smith said he drove down to the rally because he disagrees with Barack Obama's tax policy. "We're gonna pay higher taxes under Barack Obama, he's gonna tax small businesses," he said. "We're out here supporting the American dream, people like Joe the plumber."
And here's some video of the group: