Will Democrats’ Bitter Primaries Hurt Them When It Matters Most?

Democratic Primaries Produce Nominees in Several Key 2026 Races

The Slatest

Democratic candidates are completing primary contests this summer in multiple states. Observers are examining whether the outcomes of these nomination processes will affect performance in the November general elections against Republican opponents.

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As regular Slatest readers know, the newsletter usually answers questions about current events. At times it examines larger questions without immediate answers. Following primary elections that featured competition between candidates associated with different wings of the Democratic Party, one question concerns the potential effects on general-election results: whether these nomination contests will influence Democratic performance against Republicans in November.

Unifying party supporters after nominations presents a recurring task for any political party. Divisions within the Democratic Party have received attention during the current cycle. Some differences concern policy positions. In last week’s Michigan Senate primary, Abdul El-Sayed, who supports Medicare for All, received 49 percent of the vote and defeated Rep. Haley Stevens, who holds a different stance on certain foreign-policy issues. Other contests center on candidate qualifications or proposed approaches. In Tuesday’s Wisconsin governor primary, David Crowley received less than 40 percent but defeated Francesca Hong.

Primary contests occur for identifiable reasons. They allow parties to address internal policy differences and to evaluate candidates. Research in political science has examined whether extended or competitive primaries affect later results. One analysis of House, Senate, and gubernatorial primaries held by both parties between 2010 and 2022 found that nominees who win with only a plurality of votes tend to receive lower shares in general elections than models predict. In states with narrow partisan margins, such as Michigan and Wisconsin, the study indicated a lower probability of victory for plurality winners.

Several 2026 Democratic primaries involved multiple candidates, producing plurality outcomes in the cited cases. The same study covered primaries of both major parties and reached its conclusions on the basis of vote-share data across election cycles.

Competitive primaries can also shape later stages in additional documented ways. Candidates may adopt positions during the primary that later require adjustment for a broader electorate. Media coverage during longer contests can highlight earlier statements by candidates. In Wisconsin, reporting on Francesca Hong’s prior comments regarding policing and holidays received attention before the primary. Resources allocated to primary advertising cannot be redirected to general-election advertising. These patterns have been observed in past cycles for both parties.

Whether primary competition produces lasting effects depends on subsequent actions by candidates and voters. Winning and losing candidates can choose to support the nominee or to withhold support. Voter behavior in the general election remains the decisive factor.

In the Michigan Senate race, Rep. Haley Stevens, who had criticized El-Sayed’s positions, later appeared with him at a joint event. El-Sayed, who had questioned Stevens’s capabilities during the campaign, described her positively at the same event. In Wisconsin, David Crowley posted an image of a meeting that included Francesca Hong and stated that state Democrats were united.

In the Texas Senate primary held in March, Rep. Jasmine Crockett lost to state Rep. James Talarico and issued an endorsement. Crockett has not participated in joint campaign events with Talarico and has made comments questioning aspects of his outreach to Black voters. An Emerson College poll released on Thursday showed Talarico trailing among Black voters relative to the party’s gubernatorial nominee in the same state.

Republican candidates and strategists have addressed Democratic primary outcomes in public statements. In Michigan, former Rep. Mike Rogers, the Republican Senate nominee, invited Democratic voters dissatisfied with El-Sayed’s associations to support his campaign. Michael LaRosa, a former spokesman for Jill Biden, has also suggested that some Democrats might consider voting for Rogers.

Historical examples show variation in post-primary behavior. After the 2020 presidential primaries, Joe Biden and Bernie Sanders supporters largely aligned for the general election. In 2024, some progressive figures declined to endorse Kamala Harris while citing the conflict in Gaza. Current polling places President Trump’s approval rating at low levels. Statements from Democratic candidates, including Crowley’s comment to Politico that the shared objective is preventing a Republican victory in Wisconsin, illustrate one approach to managing remaining differences.

The article continues with additional reporting on resource allocation, polling trends in the cited states, and statements from campaign officials on both sides. Data from the cited 2024 study and subsequent academic reviews are referenced for context on plurality winners. Campaign finance filings show primary spending totals for the Michigan and Wisconsin races. Voter turnout figures from recent cycles provide baseline comparisons. No conclusions are drawn beyond the recorded events and available quantitative findings.