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Red is the color of the PT (Workers’ Party) that just got crushed.

As well it should be the color of our leftist “Democrat” party.

It's a good thing that the Communists in the media gave red to the Republicans. They probably thought they were being snarky, but it may actually help Republicans win elections.

Research conducted during the 2004 Olympic Games in Athens showed that competitors in taekwondo, boxing and wrestling who wore red clothing or body protection had a higher chance of winning. The effect wasn't large, but when the statistics were combined across all these sports it was undeniable – wearing red seemed to give a slightly better chance of winning gold. The effect has since been shown for other sports, such as football.
The researchers had a straightforward explanation for why wearing red makes a difference. Across the animal kingdom, red colouration is associated with male dominance, signalling aggression and danger to others. The vividness of the red displayed by individuals of various species has been shown to relate to the amount of the hormone testosterone they have in the bodies, which also correlates with their physical health and eventual breeding success. The researchers claimed that humans too are subject to this "red = dominance" effect, and so, for combat sports, the athlete wearing red had a psychological advantage.
In competitive sport, small advantages like this matter. The difference between winning and losing can be milliseconds, or millimetres. So, should every country be fighting for the right for their sportspeople to wear red?
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In any competitive sport there will be close calls, situations where the margin of victory is small, and a referee has to make a judgment to the best of their abilities in the blink of an eye. It seems that because red does have an association with victory and dominance, the judgement of these marginal situations can, occasionally, be influenced by the contestant's clothes. Colour does produce a psychological effect, but it is a bias in the refs, not in the contestants. Source: bbc article