Four influential US Senators have demanded a crackdown on sham universities helping foreign nationals illegally enter into America. In a letter to Alejandro Mayorkas, Director of the United States Citizenship and Immigration Services, USCIS, they said that such sham universities are not real institutions of higher learning, but rather, operate solely for the purpose of manipulating immigration law to admit foreign nationals into the country. Senators Dianne Feinstein, Claire McCaskill, Charles Schumer and Jon Tester referred to the recent incident involving the Tri-Valley University in Pleasanton, California, where over 1,500 students from foreign countries including India obtained student visas to enroll in an unaccredited school that failed to provide the education required under America’s student visa laws.