Blocking Trump Tax Return Release Puts Treasury Sec. In Legal Jeopardy | The Last Word | MSNBC

In a new Daily Beast article, tax expert David Cay Johnston reveals that if the treasury secretary and IRS commissioner do not comply with the request to release Trump’s tax returns, they will be violating a law punishable by up to five years in prison. Lawrence O’Donnell discusses with David Cay Johnston in an exclusive interview.