Conversely, the worst-paying college majors are child and family studies, elementary education, social work, culinary arts, special education, recreation and leisure studies, religious studies, and athletic training.

FORBES: The 15 Most Valuable College Majors

Mr Tancredo has been furious about immigration since 1975, when he was a high-school social-studies teacher and the Colorado legislature passed the country's first bilingual education law.

ECONOMIST: Dispiriting news on immigration