Testosterone may be involved. Testosterone levels rise in men when they win and plummet when they lose. And testosterone is linked with energy, motivation and sex. So it’s possible that rising testosterone is fueling Republican men’s elevated dating activity; while plunging testosterone is reducing libido and the drive for romance among male Democrats. Women are less governed by this hormone–however, depression can also stifle yearning and motivation. But Democrats will revive—because love is, ultimately, more powerful than politics. ”