Pete Buttigieg’s presidential campaign late this week tried to detail his work history at McKinsey & Co., which Democratic rivals say is a necessary step due to the management consultant firm’s reported roster of unsavory clients.

Lis Smith, spokeswoman for the South Bend, Indiana, mayor’s White House campaign, spent the better part of Friday tweeting assurances the candidate is attempting to get released from a nondisclosure agreement about his McKinsey work from 2007-2010, following college at Harvard University and two years as a Rhodes Scholar at Oxford University. Then on Friday night, Buttigieg, 37, issued a statement summarizing his projects there.