Several prominent Democrats have engaged in active endorsement strategies during the 2026 primary cycle, a move viewed by political analysts as a method to build influence ahead of the 2028 presidential election. Figures ranging from progressives such as Rep. Ro Khanna (D-CA) and Rep. Alexandria Ocasio-Cortez (D-NY) to moderates like Pete Buttigieg and Pennsylvania Gov. Josh Shapiro have backed candidates in contested races across the country. These actions allow potential presidential contenders to build networks with donors, test political messaging, and establish alliances with newly elected officials.
The endorsement records for these figures are mixed, reflecting varying strategies. Rep. Khanna has endorsed more than a dozen candidates, often backing insurgents early in their campaigns, such as Analilia Mejia, who won in New Jersey. However, some of his choices, including Illinois candidate Kat Abughazaleh and Wisconsin gubernatorial candidate Francesca Hong, lost their races. Rep. Ocasio-Cortez has taken a more selective approach, acting as a "closer" by endorsing candidates like Randy Villegas in California shortly before his primary victory.
Moderate Democrats have also been active, with Pete Buttigieg campaigning in presidential battleground states and endorsing successful candidates like Rebecca Cooke in Wisconsin and Luke Bronin in Connecticut. Meanwhile, several Democratic governors, including JB Pritzker of Illinois, Josh Shapiro of Pennsylvania, and Wes Moore of Maryland, focused their efforts primarily on candidates within their own states. Pritzker notably contributed $10 million to a super PAC supporting Juliana Stratton, who won the primary for a retiring senator's seat.
Other potential 2028 contenders have maintained a more limited presence in the primary cycle. California Gov. Gavin Newsom and Kentucky Gov. Andy Beshear did not endorse in federal or state primaries before they were completed. Kamala Harris also limited her involvement to a few candidates with whom she shared close personal or professional ties, such as Stacey Plaskett in the U.S. Virgin Islands and Dan Koh in Massachusetts.
The scale of this influence is significant, involving millions of dollars in spending and dozens of high-stakes races. In Illinois, Gov. Pritzker’s $10 million investment translates to a substantial per-voter expenditure to influence a single Senate seat. Across the country, these endorsements help determine the composition of a party that represents tens of millions of Americans. Candidates who win their primaries with this high-level backing often enter the general election with established donor networks and national support structures already in place.
For the endorsers, the success or failure of their chosen candidates serves as a public measure of their political capital. A track record of successful endorsements can strengthen a leader's standing within the party, while high-profile losses may lead to questions about their national appeal. The next phase of this process occurs in November 2026, when these primary winners face Republican opponents in the general election. The performance of these candidates will determine which wing of the Democratic Party holds power in the next Congress and will likely shape the early stages of the 2028 presidential primary cycle.