Three Democratic candidates debated their platforms for a vacant U.S. Senate seat on Thursday, May 28, 2026 [1].

The contest follows the retirement announcement of Sen. Gary Peters (D-MI). As the candidates vie for the open seat, the debate highlights internal party divisions over campaign funding and foreign policy priorities.

The event took place at the Mackinac Policy Conference on Mackinac Island, Michigan [2]. Rep. Haley Stevens (D-MI), state Sen. Mallory McMorrow (D-MI), and Abdul El-Sayed squared off to discuss the future of the state's representation in Washington [1].

Central to the discussion were the rules governing corporate and foreign campaign donations. The candidates also addressed the influence of a pro-Israel political group on the election cycle [2]. These topics underscored the differing approaches the candidates take toward campaign finance, and political lobbying.

Beyond financial influence, the candidates debated the expansion of health-care services. The conversation focused on how to increase access to care for Michigan residents while maintaining sustainable funding models [2].

Reports on the atmosphere of the event varied. Some observers said the exchange was combative, while others said the debate was mostly friendly [2, 3]. Despite the differing perceptions of the tone, the three participants remained focused on the policy distinctions that separate their campaigns [1].

The candidates are now competing for the support of the Democratic base as they move toward the primary election to replace the retiring senator [1].

“Three Democratic candidates squared off in a debate, discussing foreign and corporate campaign donations.”

The emergence of three distinct Democratic profiles in this race suggests a struggle to balance the party's establishment wing with more progressive or reform-minded factions. By focusing on campaign finance and healthcare, the candidates are signaling that the primary battle will be fought over the purity of political funding and the scope of the social safety net, rather than just party loyalty.