In high-stakes politics and business, there are only two colors of ties: red and blue. Oh, sure, you might spot purple or yellow now and then, but those are clear statements of aloofness, be they calculated or careless....
Red and blue are also thought by psychologists to improve brain performance and receptivity to advertising. The 2009 study in Science supports this idea. It also suggests nuances that world leaders and presidential candidates might want to know about, assuming one buys into the notion that presidential messages and speeches are essentially a form of advertising.
http://www.livescience.com/3281-red-blue-necktie-colors-matter.html
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And Clinton? She managed to pull off a devastating move that fell somewhere between a withering Is that what youre going to wear? from your mother, and a mean girl in high school fashion-shaming a frenemy.
She sucked the power right out of that red tie. And then she wore a red suit.
http://qz.com/793074/did-hillary-clinton-psych-donald-trump-out-of-wearing-his-red-power-tie-by-predicting-he-would-to-zach-galifianakis-on-between-two-ferns/
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The subconcious does play an important role in politics. Any words coming out of a politicians mouth are mere gravy on the "feelings" the viewer has already formed by the impressions given.