Every president since Richard Nixon has released their tax returns while in office as part of a "tradition" of financial transparency. But, and there's almost always a but, and something we need to understand, Presidents are under no legal obligation to release their tax returns. Will he release the tax returns? Who knows. If he does fine. If he doesn't, fine. Either way, we gotta move on. I also agree with my2cents in regards to the wall. :)