When it come to a group of people, I believe white men were able to vote first, then in 1869 woman were able to vote, while non-white and free male slaves were able to vote in 1870. But if your asking a person I honestly don’t know who! Sorry if this ain’t what you had asked for!
There were many reasons. For starters, it involved getting rid of a large number of Native Americans, and while some supported this, others opposed it as they were peaceful. Another thing was that this meant the introduction of new states and it deepened the division based on whether the states should be slave states or non-slave states. Also they involved war with Mexico and some wanted this and some didn't.
John Adams convinced delegated to sign the Declaration of Independence by working constantly and giving many sincere speeches about the importance of independence.
Answer:
environmental degradation, the spread of disease, economic instability, ethnic rivalries, and human rights violations
Explanation: