What was the calhoun doctrine? he pressed for states rights in the case of slavery. he wanted states to have the right to nullify national laws. he tried to enforce national laws over states rights. he supported the increased tariffs to promote industries in his home state.

pennsylvania, new hampshire, massachusetts, connecticut and rhode island .

the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.