The science is settled.

A sobering new study published by the Journal of Wine Economics — yes, there is a Journal of Wine Economics — finds that alcohol consumption in American states rises as the population’s politics becomes more liberal.

The study by Pavel Yakovlev and Walter P. Guessford of Duquesne University in Pennsylvania shows a direct correlation between political beliefs and the demand for alcohol. The study compares sales of alcoholic beverages against the political leanings of a state’s members of Congress, as ranked by liberal organizations Americans for Democratic Action (ADA) and the AFL-CIO Committee on Political Education (COPE).

The research reveals that states with more liberal representatives like Nevada tend to consume up to three times more alcohol per head than more politically conservative states like Arkansas and Utah

I’m still sticking with my theory that they’re all in the midst of a psychotic break but am willing to entertain other theories that explain liberal insanity.