Lincoln had neither a rebellion nor a civil war; there was no battle to overtake D.C.. It was a war of secession/self-governance and autonomy.
IMHO, the article too is correct about the delegation of power. It belongs with Congress, along with the other Legislative powers in the Article.
Lincoln should have been slapped hard for the power grab, let alone Sherman’s march to the sea/Atlanta. But, to the victor goes the writing of history.
So who fired the first shot, chief?
It was a war of secession/self-governance and autonomy.
Got news for you, but the Confederacy was hardly a bastion of democracy and freedom. By 1863, it was an obnoxious military dictatorship that few in the South continued to support.
And to the losers the mythologies...
What, the shot in the head wasn't enough?
Congress delegated the power to act when it was not in session via the 1795 Militia act.
In accordence with that, Lincoln declared the insurrection and acted to begin to put it down.
Further, Congress voted to confirm his acts after they returned to session.