Widely covered by the AP, a British study in Nature that claims wearing red, particularly in team sports, is the mark of winner. In surveying four olympic sports, and drawing connections between the color red in wildlife as a sign of aggression, the authors find "Across a range of sports, we find that wearing red is consistently associated with a higher probability of winning."
So, I guess it's in the bag. There's a great history by Tom Zeller of the use of red/blue to depict either republican/democrat, but at this point, with the current associations fused into our national psyche, the democrats will be forever losers until the world gets scared of the sky, or at least Sinatra.
The article mentions that the Patriots are a winning team with a bit of red in their team colors. Of course there is a *bit* of red there, but of late, save the throwback jerseys, their uniform colors have been either white (XXXIX) or blue (XXXVIII, XXXVI). The all red Patriots uniform? My strongest memory is the 46-10 Super Bowl loss to the Bears.
My favorite headline for this AP story comes from Cincinnati, the land of the Reds: "You're joking right? Red helps you win?"