As far as we know Donald Trump has received hundreds of millions of dollars through business dealings with Putin and his cronies. If it is true it may explain why he has such warm feelings towards Putin and doesn't seem to have a problem with Russian expansionism in Ukraine, especially Crimea, and against our NATO allies in Eastern Europe.
As far as we know Donald Trump has paid no income taxes. While there has been reporting that this is the case for a few years it may be so for many or all of the last thirty years. If true, it may help explain why he is in favor of keeping all existing tax loopholes and expanding them in ways that will benefit people like him.
As far as we know Donald Trump has millions of dollars stored in offshore accounts. If true, it may help explain why he is not in favor of efforts to close down offshore accounts and require transparency.
As far as we know Donald Trump has never donated significant amounts of his own money to charity. If true this may help explain why he is a total fraud when it comes to his own personal morality.
As far as we know Donald Trump has had numerous business dealings with members of the Mafia or other people involved in the illegal enterprises. If true this could be another reasonwhy he doesn't want his tax returns revealed.
As far as we know Donald Trump has had to restate his taxes or pay penalties as a result of prior tax audits. If true, this may help explain why he is so secretive when it comes to his taxes.
As far as we know Donald Trump has made millions of dollars before and after placing businesses in bankruptcy and stiffing his contractors and creditors. His making millions of dollars while small businesses and other creditors accept pennies on the dollar for money they have loaned him or work they have done for him may explain why he has not released his tax returns.
As far as we know Donald Trump has made far less money than he claims and has a net worth that is far smaller than the claims. If true this may explain why he is guarding the contents of his tax returns.
As far as we know there are all sorts of other details in Donald Trump's tax returns that could be very damaging to him politically.
Donald Trump could answer all of these questions by simply releasing his tax returns. His failure to do so is not by accident. There is no reason to think that he does not understand that if his tax returns were released they would cause significant damage to his electoral prospects.
Donald, release your returns.