<span>In the Jacksonian party system, congressional caucuses were replaced by party conventions for nominating presidential candidates. The Jacksonians are sometimes called the second party system; it is created around 1824 by Andrew Jackson who has his first run for the presidency. The party convention was created to replace the caucus.</span>
Answer:
The person telling the story has a better idea of what happened since they were there when it happened.
It’s goes period, colon (:), this thing (‘), and comma I think
Basically it's a key to candidates because it is considered to influence the overall result of the president election. Democratic and Republicans both have a good chance to gain a win.