Yes, I believe that Donald Trump is hiding something by refusing to release his tax returns. It is suspicious and unfitting of a United States Presidential candidate to not release tax returns to the general voting public. Exactly what he is hiding, I do not know, but it probably has something to with unfair tax breaks that he benefits from or off-shore accounts.
Donald Trump is hiding something since he refuses to release his tax returns. Many have chided him, and stated he could still release his returns, even if he is being audited. For instance, Warren Buffet said he is being audited but is willing to release his returns. He is breaking with a longstanding tradition, making his argument seem silly.
Yes, Trump is hiding something. If he weren't hiding something, he would show his tax returns. What does he have to hide? It is not as if tax returns are some personal document like an email or a lewd photo; they are government documents. If Trump wants to be trusted by the American peple, he should release his tax returns to show that he does not have anything to hide.
Yes, Donald Trump is hiding something in his tax returns. He was a Democrat as of four years ago, so it is possible he donated to the Clinton Foundation, thus discrediting him among top Republicans. He may also have donated to the Russian government and Vladimir Putin's reign as president.