California Governor Gavin Newsom, who had avoided New Hampshire to sidestep presidential rumours, made a significant visit to the state as President Joe Biden's top advocate in battleground states amid Biden’s political crisis. This marked the most crucial step in Newsom's multi-state tour supporting Biden, who reiterated his intention to continue his campaign despite growing pressure from Democrats to step aside. Newsom, emphasizing his loyalty to Biden, sidestepped questions about his own presidential ambitions and criticized the party's internal divisions during a New Hampshire fundraiser.

As Biden’s campaign faces challenges, including his poor debate performance and concerns about his age and effectiveness, some Democrats privately discuss alternatives, with Newsom being a prominent contender. Michigan Governor Gretchen Whitmer, Pennsylvania Governor Josh Shapiro, and Maryland Governor Wes Moore are also considered potential replacements. Newsom has actively campaigned in states like Michigan and Pennsylvania, leveraging his rising profile to bolster Biden’s campaign. However, Biden's strained relationships in New Hampshire, stemming from his push to change the primary calendar, pose additional challenges.

While Newsom’s loyalty to Biden is seen as both a strength and a potential risk, his support is critical for Biden’s campaign. The Biden-Newsom relationship is mutually beneficial: Newsom gains a platform to elevate his national profile and Biden benefits from Newsom's dynamic support. Despite the tensions, New Hampshire Democrats expressed enthusiasm for Biden, with some leaders advocating for a swift transition to new leadership if necessary. Newsom, however, remains committed to Biden's re-election, predicting Vice President Kamala Harris could succeed if Biden steps aside.