The actions of which organization led to the democratic revolution in poland?

i would go with the last one

southerners, for their part, considered brown a terrorist. they felt threatened by northerners' deification of brown and worried about the potential for other, similar armed insurrections.

explanation:

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;

not sure might be he acquired the entire oregon territory from great britain