<span> Geographic expansion exposed latent tensions over the morality of slavery and the balance of economic power. It was during the Era of Good Feelings that the political issues arose that would dominate American politics for the next 40 years.</span>
That she’s pregnant ... and he’s da father
Ford Model T and the Production line/conveyer belt
The Bush Doctrine was a doctrine of preemption that involved both a major assertion of Presidential authority and potentially lowering the threshold of war.
Unquestionably threatened to weaken, even destroy important internal checks on presidential power
Hope the attached answer helps