status mostly are the members of the Republican National Committee, three from each state, which are the party chair and two additional committee members elected to the committee by the state convention, one committeeman and one committeewoman. This means that unbound delegates are mainly just 168 of the total number of delegates. As the Republican Party in difference to the Democratic Party puts little national rules on how to organize the state contests and the state parties have large freedom to decide over their delegate selection process, there are also very few contests, territorial in particular and in a few states, which reserve the option to let all of their delegates or a substantial amount stay unbound until the convention, or freely declare their candidate preference binding themselves. Because of this the amount of unbound delegates is slightly higher. The state party rules ultimately decide over the status as unbound delegates, and there are also state parties that directly define their RNC members as bound delegates. Despite their status still being part of the national party rules, unbound delegates have not retained their freedom to vote for whichever candidate they please. At the 2012 national convention, following the unusually long process to determine presumptive nominee Mitt Romney and in order to prevent a chaotic convention through a so-called "insurgency" of Ron Paul delegates (who had planned to garner public interest for Paul's minority libertarian views), the Romney campaign and the Convention Committee on Rules and Order of Business enacted several historic rule changes by a vote of 63-38, which tightened the role of unbound delegates and enabled the RNC to change the rules (by a 3/4 majority) between national conventions, without needing delegate approval. Unbound delegates from states with a primary or presidential preference vote were obliged to vote according their state's result, and other votes were disqualified. In 2015, the RNC reitterated this decision; the unbound RNC members have since then essentially been bound to the statewide winner in the same manner as the state's at-large delegates. Because of the freedom of the local parties over the process, the process by which delegates are awarded to a candidate varies from state to state. Many states have been using a winner-take-all system, where popular vote determines the winning candidate for that state. However, beginning in 2012 many states introduced proportional representation. While the Republican National Committee does not require a