You're right when I used the word I was referring to "Audit the Fed" slogan à la Bernie Sanders & Ron Paul. The bill in question that was striked down is here [0].

The bill's purpose

> ...If enacted, the bill would also have ensured that the

> audit results would be available to Congress. The audit

> would include the Fed's "discount window", its funding

> facilities, its open market operations, and its agreements with foreign bankers. [1]

[0] https://en.wikipedia.org/wiki/Federal_Reserve_Transparency_A...

[1] https://en.wikipedia.org/wiki/Federal_Reserve_Transparency_A...