It would if the media would actually report it, but they will not.
http://www.google.com/search?q=david+plouffe+kernell&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
Not that simple.
This allegation, if true, could be raised by the McCain campaign's PR people and the press would have to report on it.
All depends on if its true.