"This is just another reason why Donald Trump needs to release his tax returns"
No. Donald doesn't need to do anything.
The US Congress needs to demand - by subpoena, by legislation, by whatever it takes - Trump's COMPLETE set (i.e., his entire portfolio)
of filed tax returns from the IRS. Those freakishly spineless Republicans need to do what is right.
For once in their callow, hypocritical, greedy lives.
JMHO.