This might provoke a Constitutional Crisis if the executive branch ignores what the Judicial Branch tells it to do.

For awhile, the Judicial Branch was completely absent from the WhiteHouse.gov website. (As of right now, it's not linked to from https://www.whitehouse.gov/1600/executive-branch .) Going to the page (https://www.whitehouse.gov/1600/judicial-branch) actually gave you a 404 error. As people on social media noticed this, though, it looks like they've restored the page.