How does Trump lose? What on earth do you think is going to happen to Trump if his taxes are released?
When he repeatedly lied about his intent to release his returns like every other presidential candidate, he had a reason for doing so.
The Loser has been under investigation concerning the Trump Corporation's artificially inflating the value of Trump properties to get the best possible loans while presenting different much lower values to tax authorities - tax fraud.
In addition, with massive personal loans coming due, and banks already refusing to do business with him, his ability to raise the funds needed to meet his financial obligations could be further eroded by revelations of his actual worth.
He's already the man on the way down, his precipitous descent accelerated by his goons' insurrection that failed to thwart the democratic process, and this is but one of several criminal and civil cases pending against him.