The law on Trump’s tax returns is crystal clear. Will he flout it? - The Washington Post: Opinion

The president's tax information is within Congress's lawful reach.....
https://www.washingtonpost.com/opinions/the-law-on-trumps-tax-returns-is-crystal-clear-will-he-flout-it/2019/04/09/fbbbd9ca-5a2c-11e9-842d-7d3ed7eb3957_story.html