We can tell day and nigth pretty much almost anywhere like libarys,houses,schools etc
The presidential campaign formally opens when a candidate is officially nominated at the National convention. thereafter, the candidate can call out press conferences, conventions to call out his platforms for everyone to know his intentions about the country. The republic allows all legible voters to vote their own cadidate of choice.
If I remember it correctly, D. the cotton gin led to more slavery as one of the surge in production required more slaves to get the cotton.
