I know all this, and what I said holds true according to your article. But also there is this because Congress is limited in certain regards as is the other 2 branches. I'll leave this for you.
156. Disclosure of matters occurring before the grand jury to Department of Justice attorneys and Assistant United States Attorneys
An excerpt:
Rule 6(e)(3)(A)(i) does not authorize disclosure to attorneys for other Federal government agencies. SeeUnited States v. Bates, 627 F.2d 349, 351 (D.C.Cir. 1980).
Nor is disclosure permitted under this section to attorneys for States or local governments. In re Holovachka, 317 F.2d 834 (7th Cir. 1963);
Corona Construction Co. v. Ampress Brick Co., Inc., 376 F. Supp. 598 (N.D.Ill. 1974).
Another excerpt: outlying the legality of A.G.Barr releasing unredacted grand jury info:
The unauthorized disclosure of grand jury information can also be punished under other criminal statutes as well as pursuant to a district court's contempt powers. If an individual discloses grand jury material with the intent to obstruct an ongoing investigation, he or she may be prosecuted for obstruction of justice under 18 U.S.C. § 1503.
SeeUnited States v. Jeter, 775 F.2d 670, 675-679 (6th Cir. 1985),
cert. denied, 475 U.S. 1142 (1986);
United States v. Howard, 569 F.2d 1331, 1334-1335 (5th Cir.),
cert. denied, 439 U.S. 834 (1978).
Unfortunately it's a done deal, especially considering executive privilege has been issued. Congress can take the DoJ to court but the court will uphold the laws that I have listed above.