Absolutely. Add Trump's tax returns to that list as well.
Trump's tax returns should have been released for reasons having nothing to do with this investigation.
But what do you hope to see on a tax return? A tax return may not have where and how you earned your income. Does your's have that info on it?
In light of the above, I always surmised that he wouldn't release his tax returns because he ether isn't earning as much income as he'd like you to believe or he isn't paying as much tax as you'd think due to the myriad of legal tax deductions and credits inserted purposely into the tax code by many that are now called tax "loopholes", LOL.