Nasdaq Sell-Off Puts AI Boom on Notice After Democrat Sweep

US tech stocks took their steepest hit of the week on Thursday, with the Nasdaq — home to Alphabet, Nvidia, Meta and Apple — leading a global sell-off after Democrats swept the mid-term elections and took full control of Congress.

The trigger looks political. Several leading Democrats campaigned against the unhindered expansion of data centres, the physical backbone of artificial intelligence. Investors now fear that a Congress in Democratic hands will push through AI regulation and curb the industry's growth.

But the election results landed on ground that was already shaky. Concerns about whether the AI boom can deliver expected returns have been building for months, alongside headlines from AI researchers casting doubt over the technology's safety — some even calling it an existential threat to humanity.

How did the AI gold rush get here?

The release of ChatGPT by OpenAI in late 2022 ignited massive public and corporate interest in practical AI — and a modern-day gold rush. Investors poured money into:

• chipmakers and networking infrastructure
• data centre construction
• the energy that powers those facilities
• AI development itself

Tech valuations soared. Investments in AI are expected to reach $1 trillion in 2026 alone, according to Goldman Sachs research. The sector has absorbed so much available cash that other industries have seen their borrowing costs rise as a result.

The appetite, in short, crowded out everyone else.

What does the Democrat win change?

While the Trump administration has been all-in on AI — or "super intelligence," as the president calls it — many leading Democrats tapped grassroots anger over data centres' water and electricity consumption, noise, land use and disruption. Many voters feared these facilities would push up their household bills.

The numbers back that mood. A Gallup poll published in May showed 71% of Americans would oppose a data centre being built in their community. A nuclear power station scored 53% opposition.

James Talarico, who won the Senate race in once staunchly Republican Texas, ran on that scepticism. "While we want to protect America's leadership in artificial intelligence, we are still grappling with how it will affect everything from how we work to how our children learn," he said. "We must protect Americans and establish clear, consistent laws for businesses."

Texas' Democratic governor-elect Gina Hinojosa campaigned against data centres and pledged a moratorium on new construction. Her win sets up a direct clash with Elon Musk, who has moved large parts of SpaceX and Tesla operations to the state. Musk spent nearly $450 million backing Republican campaigns in the midterms — and lost the state's top job anyway.

Where next for stocks?

Tudor Brown, co-founder of British-based Arm Holdings, frames the problem plainly: "stock values are based on future earnings not present earnings." If the rewards look smaller than promised, investors sell.

Nandini Roy Choudhury of Future Market Insights expects investors to assess whether the political shift produces restrictions on data centre construction, energy consumption and AI deployment. She sees no immediate widespread recovery in tech stocks; traders will likely stay selective and favour firms with stronger balance sheets.

Brown, for his part, thinks the damage will be contained. Share valuations, he argues, were inflated by expectations of "almost infinite AI growth," followed by "a bit of a panic."

"There is a natural floor to this," he says. "After that it will reflect I think that actually there's still a lot of money being made in these companies."

The open question is whether this is froth coming off an over-exuberant market — or the first crack in a bubble with far wider consequences.