Link Between Baseball and Political Philosophy?

An article in the WSJ on the voluminous statistical research done on baseball contained this interesting tidbit.

In the May 2007 Quarterly Journal of Political Science, Christopher Zorn, a Penn State professor, and Jeff Gill, of Washington University, demonstrated that Democrats tend to support the designated-hitter rule more than Republicans or independents do. Using data from a 1997 CBS News poll, they suggested that the DH, introduced in the American League in 1973, not only represented radical change from tradition, but also struck some conservatives as anticompetitive. "Liberals all like the designated hitter," Prof. Zorn contends, "because it's sort of a welfare program. It lets hitters hit longer into their careers and takes responsibility away from the pitchers."