>... by Congress, presumably? If so, it seems to me there might be questions about whether Congress can give itself increased authority when it comes to compell

>... by Congress, presumably? If so, it seems to me there might be questions about whether Congress can give itself increased authority when it comes to compelling the executive branch. This is settled law. People have gone to jail for contempt of Congress. It's true the branches of government are co-equal, but Congress has a legitimate oversight authority. The problem is Congress doesn't have a way to enforce the law independent of the executive branch, so as I said the way forward is to keep impeaching Attorneys General until they get one who does his job. It's not politically practical without overwhelming public support. >Hmm. 5th amendment? Sure, but just like in court the 5th amendment isn't an absolute protection against being force to provide testimony. It only protects you from self-incrimination. If Congress gives you immunity you can be jailed for refusing to testify, just as you can be jailed by a court until you agree to testify under the same circumstances.