Based on the right of "we're really pissed off !"
Still trying to get my head around this all. Any documents produced by POTUS I understand are public record. But by what right can a Congressional body ask for his taxes or anything personal to DJT? If he were under CRIMINAL investigation by say a State office for something relating to his businesses then yes, there is a legal process that can and must be followed. But a legislating body? I might be naïve, but I am unsure how a Congress can demand anything of any private citizen whom is not a employee of government. Maybe I just don’t understand the constitution of the United States.