Penn’s Biden Center provided a landing spot for many of the president’s top aides

PHILADELPHIA — When the University of Pennsylvania launched a think tank named for Joe Biden in 2017, it didn’t just create a prestige institution tied to the man who had just left the vice president’s office. It also created a landing spot for many longtime Biden advisers in the time between when he left the White House and then ran for president. The center is now drawing scrutiny from House Republicans as they ramp up investigations into the Democratic president, in large part because of classified documents found in November at the Washington, D.C., offices of the Penn Biden Center for Dip...