This refers to the system where the results of primary elections direct delegates to vote at the national convention to select the candidate for the presidential election.
The Presidential Model is the model in which the people select the executive.
In the US, the presidential and vice-presidential candidates for a party are announced at the party's respective convention. Both the Democratic and the Republican ones occured in fall of 2008.
nomination
Advisors select and choose a vice president.
primary election
presidential candidate for a political party.
To select a Presidential Candidate
Officially, the parties still select the Vice Presidential candidates. Unofficially, each Presidential candidate chooses his/her own running mate.
the national republicans
This refers to the system where the results of primary elections direct delegates to vote at the national convention to select the candidate for the presidential election.
electors from each state officially select the next president each party's presidential candidate uses speeches, debates, and advertising to try to win support from voters
Delegates from all the states meet and elect a candidate for president and then for vice president, Nowadays so many of the delegates are committed to a particular candidate by primary elections that one candidate can have the nomination "sewed up" before the convention occurs and lately it has been the custom to let the presidential nominee pick his running mate. This did not used to be the case.
we select a candidate to make them represent a part or whole as a body of a group.
"Both major political parties in the United States select their presidential candidates through a process of primary elections. However, voters do not directly select presidential nominees in these primaries. Instead, they choose delegates from their respective states who will attend a national party convention to nominate a presidential candidate for their party." from thisnation.com
caucus
caucus