C. Increased crash energy
the Main issues was that slaves where property and could therefore not gain citizenship. The Missouri Compromise was then declared unconstitutional. the decision was taken by <span>Chief </span>Justice Roger Brooke Taney.
Race is the key to the history of nations and the rise and fall of empires.
O'Sullivan found an argument to justify future US expansion into the Americas: it was "obvious." Actually, look at the map. It is clear that Americans should own all territories. So extension justifies extension (automatic alignment). It's like waves. No one can resist America.
The link John L. O'Sullivan sees between the manifest destiny and the idea of American liberty is that with expansion there would be more land for the nation's people, and far more room for industrialization and harvesting.
John O'Sullivan believes America stands for progress, individual liberty, and universal suffrage.
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