Democratic socialists won in New York. The harder tests come next.

The message New York City primary voters sent Tuesday — nominating a pair of democratic socialist candidates for Congress — could mark an inflection point for a left wing in tumult. 

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Or it may expose the limits of a movement built on Sen. Bernie Sanders’ politics and the Democratic Socialists of America’s playbook. 

One test arrives next Tuesday in Colorado, where Melat Kiros — backed by both the DSA and Sanders — is attempting an unlikely and difficult bid to unseat Rep. Diana DeGette, who has held her reliably blue Denver-based seat since the 1990s. 

“This is about addressing the corruption and actually fighting for the policies that are going to help working families,” Kiros said. “And I think we’re seeing that establishment Democrats that have been in their seats for decades at a time aren’t up to that task.” 

More tests follow in August. In Missouri, a local DSA chapter is backing former Rep. Cori Bush’s push to reclaim her old seat. In Michigan, the Metro Detroit chapter is supporting state Rep. Donavan McKinney’s primary against an embattled Democratic incumbent. And in Wisconsin, state Rep. Francesca Hong is running in a crowded primary for the governor’s seat in the presidential battleground. 

“It’s a great day to be a democratic socialist,” Hong posted on social media Wednesday morning. “Wisconsin is next!” 

The Democratic primaries so far this year have sent mixed signals: unconventional candidates have survived contested races, even as more tradition-minded types continue to win at a moment when there is a clear appetite for change. 

The progressive movement, personified in the Trump era largely by Sanders, now faces a test of how far it can push a Democratic Party that has no national leader or unifying voice — and whose brand is a source of anxiety across the country.

Yet Tuesday’s wins in New York City — where Mayor Zohran Mamdani campaigned hard for two of his fellow DSA-supported allies to win contested seats and, in one case, oust a five-term incumbent — may be difficult to replicate.

New York City is reliably blue and has a clear willingness to reward candidates on the left. And few places offer the same combination of a friendly electorate, national name recognition and local credentials that helped carry these candidates across the finish line. 

For every race like in Pennsylvania — where DSA-backed Chris Rabb won a May primary in a safe blue district — there are many others where Democratic voters are sending more centrist-minded leaders to Washington. 

“People have a right to vote, that is our democratic system,” House Democratic Caucus Chairman Pete Aguilar told reporters Wednesday. “I don’t take anything more from it. The mayor made some decisions and made some political calculations. Those individuals will come, and they’ll serve here in the Democratic caucus and they will be part of us getting to 218 votes to win the majority.” 

Already, there is alarm within the party — especially among centrists — about the DSA’s growing influence, given that the numerical path back to power runs not through liberal strongholds but through the competitive swing districts that have flipped between the parties for years.