From an astonishing article in the New York Times:
One theory is that conservative urges, when repressed out of shame or fear, can be expressed as republiphobia--the fear of the Republican Party. Freud famously called this process a “reaction formation” — the angry battle against the outward symbol of feelings that are inwardly being stifled. [. . .]
It’s a compelling theory — and now there is scientific reason to believe it. In this month’s issue of the Journal of Personality and Social Psychology, we and our fellow researchers provide empirical evidence that republiphobia can result, at least in part, from the suppression of right-wing desire.