President Biden declared he was suspending his campaign and supporting Vice President Kamala Harris as his replacement in the face of tremendous pressure from within the Democratic Party. In response, Harris declared her desire to run for the nomination and to fight to the finish. The swift transition aims to stabilize the party and counter a perceived shift toward Republicans in the race.

Following Biden's exit, leading Democratic figures quickly rallied around Harris. The Biden campaign was rebranded as "Harris for President," granting her access to significant campaign resources, including a $96 million fund. Harris promptly took over the campaign operations, reaching out to Democratic leaders for support and preparing to lead the party with the upcoming election in mind.

The sudden change in leadership has thrust the party into uncharted territory, with Harris needing to select a running mate and manage the campaign effectively with limited time before early voting starts. Speculation about her running mate includes prominent governors and senators, with discussions focusing on balancing the ticket demographically.

Despite the rapid endorsements from major Democratic figures, some party leaders, including Senate Majority Leader Chuck Schumer and former Speaker Nancy Pelosi, have not yet backed Harris. Former President Obama suggested the need for a competitive nomination process, expressing confidence in the party’s ability to produce a strong candidate despite the unusual circumstances.

Reactions to Harris's sudden ascent to the campaign's forefront have been conflicting. Her appeal to a wider electorate worries some Democrats, while others see it as a chance for fresh vigor and energy. The party faces the challenge of gauging public response to Harris's candidacy as they move forward from Biden’s campaign.