[FLT-bird]

You need to discover what “ex parts” means. And the order Taney issued (ex parte) was not issued to Lincoln, it was issued to the Commanding officer at Fort McHenry where Merryman was being held. So in actuality it was that Army officer who told Taney to shove his order where the Confederate sun don’t shine, not Lincoln. ;~))

Its "ex parte" and I'm quite sure I learned that in law school. The executive branch was obligated to respect a ruling by the judicial branch. Since the military is part of the executive branch........

[Ditto]

The executive branch was obligated to respect a ruling by the judicial branch.

Wrong. That's where “Nonacquiescence” comes into play. No acquiescence is when one branch believes that another branch is stepping on their territory.

It's obvious that the Lincoln administration thought that Taney was messing in the Executive branches authority to deal with civil insurrection. And as to “The Supreme Court” ruling in ex parte Merryman that's total bull crap. It was Taney, acting alone as a circuit court judge, in ex parte, i.e. not even meeting with anyone else, making that ruling. It was not the Supreme Court. It was one screwed up partisan pro confederate judge.