Final answer:
The primary political value of the vice president is to help the president secure votes from specific demographics or regions, although the role has evolved to include partnership in governance and leading significant initiatives.
Step-by-step explanation:
The main political value of the vice president is often to bring the president votes in the election from a group or region that would not otherwise be a likely source of support. While the vice president's role has evolved over time, it has included presiding over the Senate with the ability to cast tie-breaking votes, and serving as a primary advisor and partner to the president in governance, depending on the responsibilities and tasks delegated by the president. Vice presidents also may lead important initiatives and act as goodwill ambassadors. Over time, the impact and influence of the vice presidency have varied, as some have filled mostly ceremonial roles, while others have taken on substantial duties in the administration.