In 2016, the Internal Revenue Service reported that unpaid taxes cost the federal government over $400 billion a year. According to documents recently released through FOIA, that same year, the IRS Whistleblower’s Office, which offers compensation to individuals who report on tax evasion, had a budget just over $6 million.

For this week’s FOIA round-up, public records help confirm a story about President Donald Trump bringing members of his golf club on Air Force One, a lawsuit shows tax assessor pulling property values from Zillow, and a California city takes a stand against one reporter’s dogged crusade to keep city records secret.

Back in December, in response to reporting of Treasury claims that the proposed Trump tax cuts would generate $1.8 trillion in revenue, we requested the reporting and analysis that led to that conclusion. In response, the Treasury produced a single-page memo, which appeared to be the exact same document referenced in the article included in our request.