I have been quite clear and have no obligation to keep repeating myself. Sorry you don't understand how filing taxes works. So go off to you sandbox and stomp up and down.
ROFL credible to you you mean, then I doubt he cares what is credible to you. Credibile to tax attorneys and tax accounts, yes that is far more credible than you. Already been explained over and over. Only to those ignorant of how the process works or are just bent on their desperate hopes something of a gotcha can be found in them although all these huge expected revelations do not even lie in his tax returns.
Trump can continue to refuse to do what every other candidate has done if he likes. He is down 12 points in the last poll and his unfavorable just went off a cliff. He will likely be back in reality tv come next year. LOL