And on top of this, Congress has the power to grant subpoenas. The Supreme Court has affirmed this right since the 19th Century and it's absurd that defenders of the President keep insisting that every subpoena must be fought in court, all the way up to final appeal, in order to be valid. That is expressly not what Courts have said in the past. See: https://www.scotusblog.com/2019/07/cases-and-controversies-c...
https://slate.com/news-and-politics/2020/01/courts-slow-trum...
Sucks when the other party uses the rules against you.
If you believe you're being attacked by politically motivated partisans, it's your duty to obstruct them by whatever lawful or procedural means available.
It's all just a dog and pony show anyway. The news just want to drum up advertising because they're a dying media. The best way they have found to do that is click-bait political fighting.
Not sure where in the Constitution this appears...
This emoluments suit has been going since 2017 and got tossed on appeal via a technicality instead of being evaluated on merits, for example, and it hasn't even gone to SCOTUS yet: https://www.politico.com/news/2020/02/07/appeals-court-rejec...