Senate majority leader Chuck Schumer (D., N.Y.) quietly advised Columbia University's leaders to "keep heads down" and ignore congressional criticism of the school's handling of campus anti-Semitism, telling former university president Minouche Shafik that the school's "political problems are really only among Republicans," according to a new House Committee on Education and the Workforce report. The committee's 300-page report stems from more than a year of interviews and over 400,000 pages of