The presidential primaries (where the first candidates are elected) are a vital part of the US electoral process. And since nothing about them is laid on the constitution, it's up to the state governments to regulate them.
It's in this phase, where the political parties promote their candidates for the final elections, where only 2 candidates can participate.
The American Revolutionary War was a war fought between Great Britain and the original 13 British colonies in North America. The war took place from 1775 to 1783 with fighting in North America and other places.