Since the civil war, this level of geographical balancing is less critical, but still plays a big role.
THe VP candidate is often chosen to balance the ticket-- to supply strength in the areas in which the presidential candidate seems weak, either geographically or in terms of experience. After the campaign begins, the VP candidate's role is to support the platform and ideas promoted by the Presidential candidate in every way he can. He needs to work hard to make effective public appearances on behalf of the ticket.
They are called the party's presidential ticket. Also the party's presidential nominees.
Attract more voters for the presidential candidate
The vice president's role in running on a ticket is to support the presidential candidate and help galvanize voter support. They often bring complementary skills, experiences, or demographic appeal that can enhance the ticket's overall attractiveness. Additionally, the vice president may focus on specific issues or regions to help broaden the campaign's reach and effectiveness. Ultimately, their role is to contribute to a unified message and vision for the campaign.
Running mates in past elections often refer to vice presidential candidates who accompany presidential nominees on a ticket. For example, in the 2020 U.S. presidential election, Joe Biden's running mate was Kamala Harris, while Donald Trump's was Mike Pence. In the 2008 election, Barack Obama's running mate was Joe Biden, and John McCain's was Sarah Palin. These pairings play a crucial role in campaigning and governance.
I would say balance the ticket.
That was Joe Lieberman, Al Gore's running mate in the 2000 election.
The nominee himself (herself) once sure of the party ticket. If after the party has chosen he/she will need party approval.
Attract more voters for the presidential candidate
In US Presidential political parlance, a "Kangaroo Ticket" refers to a ticket where the presidential candidate and vice presidential candidate are not from the same political party. This term is often used to describe an unconventional or unexpected pairing of candidates on the same ticket, similar to the unique characteristics of a kangaroo.
The vice presidential candidate is often referred to as the running mate of the presidential candidate during the campaign.
The sitting vice president removed from the 1944 ticket was Henry A. Wallace. He was replaced by Harry S. Truman as Franklin D. Roosevelt's running mate during that presidential election.