Final answer:
The party's national committee is primarily responsible for organizing national conventions, developing platforms, and coordinating the presidential nomination process, not solely developing the party's governing strategy.
Step-by-step explanation:
The statement that the party's national committee's primary responsibility is to develop the party's governing strategy is False. The primary responsibilities of a party's national committee involve the orchestration of national conventions, where delegates debate, modify, vote on the party's platform, and formalize the nomination of presidential candidates. State and local party organizations handle the groundwork of elections, such as primaries and caucuses, and draft platforms that guide policy for their representatives. The party's national committee also plays a significant role in fundraising for presidential candidates and coordinating efforts between the House and Senate.