If the link is borking, you can check it out in the original link - the archived link is with no paywall while Washington Post limits how many you can read for free (archive.org does not archive Washington Post)

For this story, Washington Post reporters interviewed more than 30 current and former federal employees. To confirm those workers’ stories, they reviewed agency badge credentials, layoff notices and internal agency emails. Sources who spoke to The Post anonymously did so to avoid retribution from their agency or the Trump administration.