Recent Democratic primary victories by progressive candidates, such as Melat Kiros in Colorado's 1st Congressional District, have highlighted a recurring strategy that some observers argue blindsides moderate voters. This approach, characterized by intensive organizing and late-stage media pushes, has seen candidates like Kiros, Darializa Chevalier, and Claire Valdez emerge unexpectedly to defeat more established rivals.
Kiros's primary win over incumbent Rep. Diana DeGette in Denver, for instance, was reportedly not widely known by local Democratic voters until about a week before the election, according to one voter interviewed for this report. This rapid ascent mirrors earlier successes, including Zohran Mamdani's 2025 New York City mayoral primary win and Alexandria Ocasio-Cortez's 2018 upset of Rep. Joe Crowley. This model typically involves a sustained organizational effort, the use of non-traditional media to reach activist bases, and a condensed mainstream introduction period.
While this strategy has shown success in House races, its effectiveness in statewide or national contests faces greater challenges. Candidates in these larger races, like Abdul El-Sayed in Michigan's Senate primary, must maintain a sustained public profile, making them more vulnerable to scrutiny of past statements and policy positions. El-Sayed has faced criticism for past comments, including remarks concerning Iran and former President Barack Obama, which have been highlighted by his opponent, Rep. Haley Stevens, in an effort to portray him as outside the party mainstream. Notably, neither Obama nor Michigan Gov. Gretchen Whitmer have endorsed El-Sayed in the race.
Despite El-Sayed's association with figures like Sen. Bernie Sanders and Rep. Alexandria Ocasio-Cortez, he has publicly stated he is not a socialist. Stevens' campaign has intensified its advertising in the final weeks before the election, aiming to solidify the narrative that El-Sayed is too radical for the general electorate. This stands in contrast to the Colorado situation, where many voters were reportedly unaware of Kiros's candidacy until very close to the primary date.
The differing timelines in these races raise questions about whether progressive candidates aim to convert moderate Democratic voters or simply to surprise them with late-stage victories. While the surprise approach has proven effective in some congressional primaries, winning broader support in statewide or national elections may require a more extended period of voter engagement and persuasion, rather than a swift primary upset.