NEW YORK (AP) — The government’s top official overseeing the $1.5 trillion student loan market resigned in protest on Monday, citing what he says is the White House’s open hostility toward protecting the nation’s millions of student loan borrowers. Seth Frotman will be stepping down as student loan ombudsman at the end of the week, according to his resignation letter , which was obtained by The Associated Press. He held that position since 2016, but has been with Consumer Financial Protection Bureau since its inception in 2011. Frotman is the latest high-level departure from the CFPB since Mick Mulvaney, President Donald Trump’s budget director, took over in late November. But Frotman’s departure is especially noteworthy, since his non-partisan office is one of the few parts of the U.S. government that was tasked with handling student loan issues.