The question is: What committee sends political leaders to certain states to campaign for their party's campaign? National committee. It is the official organization for a political party (in charge of the party at a national level). It provides future policies involving the structure/searches. It also brings knowledge to the public about the defects of the party in power. The Nominating Convention for a presidential election is one of its responsibility.
Committee is the group of leaders who make the major decisions in the political party´s election strategy.