Answers I could choose from?
Answer:
That when there were American troops near their territory the Mexican troops shot at them since Mexico claimed that the Nueces River wascthe Northeastern border(US) while the US said that the Rio Grande was their border so war broke out
The key difference is how the VP was chosen.
In the election of 1800, the VP was the runner up.
This proved to be an unworkable system and led to a system wherein the President would run with a VP.