Manifest Destiny basically mean, "EVERYONE MOVE TO THE WEST NOW!" But with no slaves, how would they create farms to maintain themselves? Easy: expand slavery. However, this was battled against by several sources to create the Compromise of 1850. The compromise delayed the Civil War, despite politicians knowing it will eventually happen. It bought them time-- that was important! Other new states like Nebraska and Kansas were allowed to allow slavery or not. This eventually grew to where the North had no slavery and the South did, which lead to the Civil War.
Unlike the electoral college system for the president, the procedures for nominating presidential candidates are not spelled out in the constitution. the movement is to encourage people who considered themselves as partisans to participate in their party's presidential selection process was short lived, however.
American citizens are well known by their optimism, and it was not an exception during Alexis de Tocquevill’s time. He was a French observer of American life in the 19th century and according to his views on Americans on those days, quote: “they have all a lively faith in the perfectibility of man [...].They all consider society as a body in a state of improvement.” In opposition to the rest of the world, enthusiasm, energy, and confidence in their country’s future characterized American citizens.
Quote: “Most Americans seem to believe that the future can be better and that they are responsible for doing their best to make it that way.”