Elite colleges are quietly slashing the level of donations which can secure admission as mega-donors close their checkbooks to the Ivy League over antisemitism on campus. Their long-term practice of giving special consideration to big donors’ children and grandchildren has been badly hit by a growing backlash against college leaders’ failure to keep Jewish students safe. Now, according to one college counselor, a $2 million check might be the new $20 million. “If a billionaire has committed $50 million or $100 million a year and now they’re backing out, colleges need to figure out how to fill that gap,” Command...