Oooh boy, this was bad. I mean it was so bad I had to wash my computer to clean the stank.
For instance: McGrain v. Daugherty, 273 U.S. 135 (1927)
Okay, that isn't how they wrote it but if they did, at least it would make sense for how unbelievably shoddy this legal reasoning is.
Free Enterprise Fund v. Public Company Accounting Oversight Bd., 561 U.S. 477 (2010)
In THAT case, Congress unconstitutionally limited the control that the President could have over a subordinate member of the executive branch.