In last night's final presidential debate between Senators John McCain and Barack Obama, "Joe the Plumber" was mentioned more than two dozen times.

Who is "Joe the Plumber"? Good question.
"Joe" is Joe Wurzelbacher, a plumber in Holland, Ohio and while Obama was on the campaign trail, "Joe" approached Obama and asked him a few questions about his tax plan.
According to NBC, "Joe" told Obama he’s getting ready to buy a company that makes more than $250,000 a year. “Your new tax plan is going to tax me more, isn’t it?”, he asked. Obama went on to explain, but "Joe" didn't completely agree. The hard working plumber for 15 years went on to say, "Why should I be taxed more?"
As Obama walked away from "Joe" he said, “I gotta get out of here. I’ve gotta go prepare for this debate, but that was pretty good practice right there!”
According to MSNBC, "Joe" was mentioned 21 times by McCain in Wednesday's debate, and four times by Obama. The economy was mentioned 16 times during the debate and Iraq four times.