But all this while Mr. Lincoln contemplated the emancipation of the slaves by executive proclamation as a war measure to be resorted to whenever it should seem to him likely to be effective. In the preceding month of July he had drawn up a proclamation of emancipation, and had read it to his cabinet. But he had laid it aside, believing that the time was not yet ripe. The Confederates seemed at that time at high tide of military success. Their armies, victorious and aggressive, were overthrowing one Federal force after another, and putting Washington itself upon an uncertain defense. It was the conviction both of Mr. Lincoln and of Mr. Seward, that to issue an emancipation proclamation under such circumstances would not only seem ridiculous in the eyes of the world but would be everywhere interpreted as a despairing manifestation of conscious weakness, the futile outcry of failure. He must wait for victories before taking this step.
But when after Antietam, Lee withdrew from Maryland and abandoned his campaign against the national capital, Mr. Lincoln decided to assume the rôle of a victor, dictating terms which he held himself strong enough to enforce.
Accordingly on September 22, 1862, he issued a proclamation declaring that on the first of January, 1863, all slaves held in those states or parts of states which should at that time be still in rebellion should be then and forever afterwards free.
This was at once a threat and a promise.
It is a matter of curious speculation to consider what would have been the situation if the Southern States had submitted themselves before the beginning of 1863. In that event the proclamation of freedom to slaves within their borders would have been of no effect, inasmuch as it applied only to states remaining at war. A second executive proclamation of emancipation would have had no war necessity to justify or even to excuse it. For the Constitution conferred upon the President no power to emancipate slaves. It was only on the plea of war necessity that this power could be remotely and speculatively inferred, and that war necessity would have passed completely away had the war itself come to an end before the date set for the enforcement of the threat.
Perhaps it was in view of this very remote contingency that Mr. Lincoln at that time urged upon Congress the adoption of a constitutional amendment forbidding slavery anywhere within the borders of the Union.
Congress did not act upon the recommendation at that time, and on the first of January, 1863, Mr. Lincoln issued his final proclamation of emancipation, naming the states and parts of states in which rebellion was held then to exist, and declaring free all the slaves within those states and parts of states. It did not apply to those slave states which had not joined the Confederacy, and, except that Maryland voluntarily freed her slaves near the end of the war, the institution remained lawful in such states as had not seceded, and actually continued to exist there until December 18, 1865, when the ratification of the thirteenth amendment to the Constitution was officially proclaimed by Mr. Lincoln's successor.
So far as securing actual liberty to slaves within the Confederate lines was concerned, the emancipation proclamations had no effect whatever. They were probably not expected to have any. But they had an important bearing upon the conduct of the war and the state of the public mind. They made an end of all doubt about what Federal commanders in the field should do with slaves escaping to their lines. They satisfied the strong and growing abolitionist sentiment at the North, and they had some effect in alienating war Democrats and a considerable number of Republicans from the Federal cause, thus checking enlistments in some quarters, and impairing the administration's support.
This effect was far less marked than it would have been had Mr. Lincoln issued an emancipation proclamation earlier in the war when he was first urged to do so. Nevertheless the political effect was notable.
In the autumn elections there was a heavy falling off in Republican majorities, while in some important states Democrats relentlessly opposed to the administration and all its policies were elected to replace Republicans in office. This was notably the case in New York, where Horatio Seymour succeeded the Republican governor, E. D. Morgan, and a sentiment in hostility to the administration and to the war itself grew up, which was afterwards reflected in bloody riots when the time came for a draft of men for the army.