Kathryn Watson details for Daily Caller readers the latest evidence of left-leaning bias on American college campuses.

Major American colleges and universities – many birthed in mottos expounding “truth,” “light,” and the pursuit of “knowledge”- apparently are only interested in hiring professors and administrators who support liberal Democrat candidates and causes with their campaign contributions.

The deeply entrenched narrow-mindedness is stunning.

Vastly more of the campaign contributions by faculty and staff members at 58 major public and private universities between 1990 and 2014 went to Democrats than to Republicans at all but six of the schools, according to a Daily Caller News Foundation analysis of Federal Election Commission (FEC) data compiled by OpenSecrets.org.

The few schools that didn’t overwhelmingly favor Democrats gave only slightly more to Republicans. The vast majority of universities gave between 2.5 and 20 times more to Democrats than to Republicans, while the most conservative institutions were the most politically balanced.

That lack of partisan diversity, as reflected in campaign donations reported to the FEC, keeps students from being challenged by new ideas, critiquing their own beliefs and logics, and reaching well-reasoned conclusions about public policy issues.

“Students lose out by missing non-left interpretations of society, ethics, and human meaning,” Daniel Klein, a George Mason University economics professor who has studied the lack of ideological diversity in higher education for more than a decade, told TheDCNF. “Many get sucked into leftism; many remain aloof. But they don’t get the good stuff. A terrible shame!”