Mamdani’s success tests Democratic Party’s willingness to change

New York City Mayor Zohran Mamdani stepped into the national spotlight this week as a rising political force within the Democratic Party.

Democratic leaders are not so sure that is a good thing.

While progressives celebrated across the country, some of the most powerful Democrats in America, including House Minority Leader Hakeem Jeffries, downplayed the significance of Mamdani's victories on Tuesday. The 34-year-old democratic socialist's slate of congressional candidates defeated three establishment favourites — including two incumbents — in primary contests. He enjoyed even greater success in state legislative races, where five other candidates he backed also prevailed.

It was a remarkable sweep for Mamdani, just six months into his first term, and one that will expand his influence in both Washington and Albany. On Wednesday, the mayor said he hoped to export his policies and political approach to other states, while calling for major changes within the Democratic Party.

"Working people are struggling across the country," Mamdani said. He added that he hoped to help "write a new chapter in our party's history, where working people are back at the heart of that struggle. And I believe that will be key not just in the midterms coming up in November, but also in the years to come."

The mixed reaction from Democratic leaders as they grappled with the fallout from Mamdani's success exposed the depth of the divide between the party's progressive and establishment wings. The two factions remain at odds over how Democrats should govern — and how they should win elections — during the final two years of Donald Trump's presidency.

Indeed, Democrats are keen to avoid an all-out internal party war ahead of the November midterms, particularly as Republicans battle among themselves over Trump's war in Iran, how to tackle the cost-of-living crisis and the president's expensive plans to build a vast White House ballroom.

Democrats uncertain about the way forward

Resistance to Mamdani among senior Democrats was anything but subtle.

"The effort to nationalise New York is going to fail," said Senator Richard Blumenthal of Connecticut. "What is happening in New York will be largely irrelevant by the time voters go to the polls in November."

Representative Marc Veasey of Texas, a vice-chair of the New Democrat Coalition, was similarly dismissive, saying progressives were playing checkers while moderates were playing chess.

"No one in the DSA is trying to win in a red-to-blue seat, or in a tough general election contest," Veasey said, referring to democratic socialist candidates.

Those on the party's left argued that the latest nominees should be welcomed with open arms.

"What I would like to see, and what I think would actually be productive and beneficial, is a congratulations to these people, a commitment to welcome them in, and an effort to understand the perspectives they bring," said Representative Summer Lee, a 38-year-old progressive from Pennsylvania.

Senator Bernie Sanders, an independent from Vermont who campaigned alongside Mamdani and his allies last week, said New York's results sent a clear message.

"The American people, in New York and increasingly across the country, are sick and tired of status quo establishment politics," he said. "I think you're going to continue to see that."

Trump seized the opportunity to stir the debate from the Oval Office, telling reporters that Democrats were "going radical left" and that Mamdani's choices were "really communist".

He also marvelled at the defeat of Representative Dan Goldman, a former lead lawyer during Democrats' first impeachment effort against Trump. Goldman was defeated by Brad Lander, a Mamdani ally.

"When they go more liberal than Dan Goldman, they're really into Never Neverland," Trump said.

'Voters are just fed up'

Mamdani backed three anti-establishment congressional challengers in what his own team acknowledged was a political gamble. He won all three contests.

Goldman, a two-term incumbent, was decisively defeated by Lander, a former city comptroller.

US Representative Adriano Espaillat, who leads the Congressional Hispanic Caucus, was unseated by Mamdani's most controversial pick, Darializa Avila Chevalier, a democratic socialist who once helped organise pro-Palestinian protests at Columbia University.

Antonio Reynoso, the handpicked successor to US Representative Nydia Velazquez, lost to another democratic socialist, Assembly Member Claire Valdez.

The entire Mamdani-backed slate promised to abolish ICE, condemned what they described as Israel's "genocide" in Gaza and pledged to "tax the rich".

"Voters are just fed up," Lander said in an interview. "They want people who show who they're fighting for and who are prepared to fight for things that matter in the lives of working people."

Encouraged by the scale of Mamdani's success, progressive leaders urged Democratic leaders in Washington — and the party's next generation of presidential hopefuls — to embrace meaningful change in the weeks and months ahead.

Senator Chris Murphy of Connecticut, a potential presidential contender, said it would be "silly" for Democrats not to draw lessons from New York's results.

"The voters are clearly telling us they want us to be bolder — bolder in the policies we're proposing and bolder in the tactics we use to fight authoritarians," he said.

Yet critics of Mamdani within the party were not difficult to find.

Jeffries, who could become the next Speaker of the House if Democrats regain the chamber this autumn, reiterated his opposition to Mamdani's slate in a series of interviews and public appearances.

"He's got work to do in terms of the conversations he's going to have with members of Congress going forward," Jeffries said, while also stressing that they maintain a good working relationship.

Republicans take notice

Buoyant Republican operatives in the House vowed to use Mamdani and his slate as political ammunition against Democrats in competitive midterm races across the country. Other Republican officials, meanwhile, warned their party not to underestimate the significance of the moment.

"Republicans need to wake up. What we saw last night in New York can only be called one thing: a socialist uprising sweeping through the Democratic Party," said Senator Bernie Moreno of Ohio. "If Republicans don't act now, we will lose this country as we know it."

Trump, meanwhile, appeared more concerned about Mamdani's growing national profile than about his democratic socialist policies.

"Mayor Mamdani pulled through three solid Communists and has received loud and universal applause from the Fake News Media. Congratulations, Mr Mayor!" the Republican president wrote on social media. "I went 16-0 last night, helping to elect wonderful American patriots, and the media doesn't say a word."

Mamdani, however, dismissed concerns that his success would undermine the Democratic Party's efforts to regain control of Congress this autumn.

"We've heard from Republicans time and again that they're going to try to make these candidates the face of the Democratic Party. To them, I say that we are ready for that," he said. "For far too long we have been told that it is not possible to fight for working people and win. These candidates have shown that it can be done."

Even so, some Democrats were realistic about the challenge ahead as fresh divisions emerged in the wake of Mamdani's success.

"We have to respect the voters. They made their decision," said Senator Peter Welch of Vermont.

"The challenge we face," he continued, "is to bring together different points of view, all in service of helping people who are struggling to pay their bills gain greater economic security. The challenge of unity is enormous. But that is our challenge."