...Lincoln didn’t respond directly or immediately to the Ex Parte Merryman decision. Instead, he waited until a July 4th address to confront Taney at a special session of Congress.

“Soon after the first call for militia it was considered a duty to authorize the Commanding General in proper cases, according to his discretion, to suspend the privilege of the writ of habeas corpus, or, in other words, to arrest and detain without resort to the ordinary processes and forms of law such individuals as he might deem dangerous to the public safety,” Lincoln said. “This authority has purposely been exercised but very sparingly.”

Lincoln then presented his famous response to Taney. “Are all the laws but one to go unexecuted, and the Government itself go to pieces lest that one be violated? Even in such a case, would not the official oath be broken if the Government should be overthrown when it was believed that disregarding the single law would tend to preserve it?”

The President also confronted Taney’s opinion that only Congress could suspend the writ.

“Now it is insisted that Congress, and not the Executive, is vested with this power; but the Constitution itself is silent as to which or who is to exercise the power; and as the provision was plainly made for a dangerous emergency, it can not be believed the framers of the instrument intended that in every case the danger should run its course until Congress could be called together, the very assembling of which might be prevented, as was intended in this case, by the rebellion,” Lincoln argued...

“Are all the laws but one to go unexecuted, and the Government itself go to pieces lest that one be violated? Even in such a case, would not the official oath be broken if the Government should be overthrown when it was believed that disregarding the single law would tend to preserve it?”