Tony Dokoupil, who once asked "is journalism ready for a black president" in the Columbia Journalism Review -- he also excerpted it in a blog entry at Huffington Post -- gave Newsweek readers a look at what the presidential candidates' neckties say about the men who wear them.

You may scoff now, but Dokoupil sure finds it a knotty problem (emphases mine):

So what does the knot say about today's presidential candidates? In McCain's case, it screams old-guard Washington establishment, like a bolo screams cowboy. According to his top adviser, Mark Salter, the Arizona senator wears his tie with either a Windsor or the related half-Windsor knot--a configuration long favored by Beltway elites and, at least judging by the photos, nearly every U.S. president in the 20th century.... McCain's Windsor might seem like an odd choice for a self-proclaimed maverick, but it reflects the senator's public struggle to remain true to himself despite the distorting pressure of the presidential campaign. [...]