The U.S. Education Department is handing off a portion of its student loan portfolio to the Treasury Department. It's a first step toward shedding management of all student loans as Trump administration officials dismantle the federal education agency. Under an agreement announced Thursday, the Treasury Department will take over management of student loans whose borrowers are in default, meaning they are months behind on payments. Those loans add up to about $180 billion, or 11% of the government’s $1.7 trillion student loan portfolio. A second phase with no timeframe says Treasury will “assume operational responsibility” over non-defaulted loans, “to the extent practicable.”