OPINION: It just got harder for Donald Trump to keep his tax returns a secret

President Donald Trump has been consistent about very few things during his relatively-short political life. But on one front he has been adamant: He will not release any of his past tax returns.

That position became slightly less tenable on Tuesday when The Washington Post reported on the existence of a 10-page draft memo from the Internal Revenue Service that makes clear the administration has no leeway when it comes to complying with a request for Trump's returns from House Ways and Means Chairman Richard Neal, a Massachusetts Democrat.

The...