The Trump administration accused Facebook on Thursday of "discrimination" in its housing advertising practices.
A Facebook spokesman said the company was surprised by the HUD charge.
"While we sought to find a solution, HUD insisted on accessing sensitive information ̵
Facebook also pointed to a blog post published last week in which the company said that the overhaul of the advertising market was an important step for the platform and thanked the civil rights organizations that helped to improve the advertising media.
"There has been a long history of discrimination in housing, employment and credit, and this harmful behavior should not be done through Facebook ads," said COO Sheryl Sandberg at the time. "Our policies prohibit advertisers from using their tools to discriminate, we have removed thousands of categories from targeting protected classes such as race, ethnicity, sexual orientation, and religion, but we can do better."
Facebook has drawn harsh criticism of the advertising-based business model of recent months. The service enables advertisers to tailor their audience based on specific and often user-specified criteria for demographics and stated interests. For example, advertisers could target "Jew-haters."
Through the self-service portal, Russian agents were able to acquire tens of thousands of dollars in election-related incidents around the US election.  Here is the full complaint of HUD: