Several of President Biden’s top aides spent their years outside of government advising the world’s most powerful companies, raking in six-figure consulting fees from firms with large federal portfolios.

Biden has leaned on veterans of the Obama and Clinton administrations to staff his White House. Many of these longtime Democratic policy operatives have passed through Washington’s so-called “revolving door,” cashing in via work with private-sector companies before returning to control the highest levers of government.