So, I'll give you the relevant part of the code that allows ways and means to obtain that information, you tell me if the supreme court is right or wrong, and if the ways and means committee is about to break the law:
First, from the LA Times:
The statute permits the chairman of the House Ways and Means Committee to request any tax return, provided — and this is important — he ensures the privacy of the return. The entire committee, for example, can access a return only when meeting in private (“executive”) session. An unauthorized public release is a felony
Tax code section 6103, subparagraph f says:
(f)Disclosure to Committees of Congress
(1)Committee on Ways and Means, Committee on Finance, and Joint Committee on Taxation
Upon written request from the chairman of the Committee on Ways and Means of the House of Representatives, the chairman of the Committee on Finance of the Senate, or the chairman of the Joint Committee on Taxation, the Secretary shall furnish such committee with any
return or
return information specified in such request,
except that any return or return information which can be associated with, or otherwise identify, directly or indirectly, a particular taxpayer shall be furnished to such committee only when sitting in closed executive session unless such taxpayer otherwise consents in writing to such
disclosure.
What is closed executive session?
In the
Congress of the United States, a
closed session (formally a
session with closed doors) is a
parliamentary procedure for the
Senate or the
House of Representatives to discuss matters requiring
secrecy.
The discussions which take place in a closed session are subject to confidentiality rules and are similar to an executive session, which itself can be open or closed. An executive session is for business which includes the
President of the United States.
So, if my understanding here is correct, they can only be furnished those returns in closed executive session, and the information is not supposed to identify a particular taxpayer, and, they cannot share anything outside of that committee unless the other committee is also in closed executive session.
So, the end result is, this information, which is, once again, an attempt by the opposing party, to tamper with elections, cannot be disclosed unless they are in closed executive session, and even then, they are bound by confidentiality rules, so they couldn't publicly disclose that information.
However, watch what's about to happen. Select, out of context information will be "leaked", in violation of tax law.