The General Services Administration’s Julia Hudson was ready to party last month, inviting roughly 1,200 federal employees to celebrate the second anniversary of her appointment as the scandal-scarred agency’s National Capital Region administrator. Refreshments would be served in Hudson’s seventh-floor downtown D.C. office suite, including a cake bearing her image, GSA sources familiar with the event’s planning tell POLITICO. But on the morning of the event, the GSA’s top leadership abruptly canceled it. They were unaware of Hudson’s plans until the night before — and determined to avoid yet another embarrassment to an agency still suffering from the infamous 2010...