Leading Democrats moved within days of Tuesday’s U.S. midterm elections to turn their gains into pressure on the artificial intelligence build-out, with Sen. Bernie Sanders, I-Vt., calling for a national data center moratorium and House members pushing to make an AI pause an opening-day priority. CNBC reported the push on Nov. 5, as stocks tied to AI infrastructure slid and newly elected senators and governors used their victory speeches to single out data centers and big tech companies.

Sanders demands a national data center moratorium
In a post on X, Sanders highlighted referendums held across the country on Tuesday in which voters in localities approved restrictions on data centers. Sanders, who caucuses with the Democrats, said the message to political leaders was clear.
“National data center moratorium now,” he wrote, adding that “Americans don’t want Big Tech oligarchs wrecking the environment, gutting jobs and threatening humanity’s future.”
The call, reported by CNBC, places a federal pause on new facilities at the center of post-election discussion among Democrats about how to respond to the rapid expansion of AI computing capacity.
House Democrats want an AI pause on Day 1
Rep. Yassamin Ansari, D-Ariz., wrote in a separate post on X that pausing AI development needs to be a top priority for the large Democratic majority in the House on Day 1. Rep. Greg Casar, D-Texas, who chairs the Congressional Progressive Caucus, amplified Ansari’s post and replied, “Yes!”
The appetite among House Democrats for confrontation with the technology industry extends beyond the AI build-out. Party leaders have also discussed subpoenas for technology chief executives in the new Congress.
Voters named AI as a factor at the ballot box
According to the CNBC Voter Poll, 56% of voters said AI and data centers were a crucial or major factor in their decision at the ballot box. Of those voters, 65% said they cast a ballot for a Democratic candidate for Congress.
Chip stocks lead a post-election selloff
Stocks linked to the artificial intelligence build-out declined slightly on Wednesday in the wake of the election, CNBC reported, but the selling intensified on Thursday as investors worried that Democratic wins could have a real impact on data center construction. Chip stocks led the decline.
- The iShares Semiconductor ETF (SOXX) tumbled nearly 9% on Tuesday.
- Nvidia declined 8%.
- Advanced Micro Devices sank more than 14%.
Flipped Senate seats ran against “data center” opponents
Democrats who flipped critical races on Tuesday also singled out big tech companies and data centers.
In South Carolina, Democrat Annie Andrews flipped a Senate seat after launching a website during the campaign that branded her opponent, Sen. Darline Graham, “data center Darline.” In her victory speech on Tuesday, Andrews said voters chose a South Carolina “where decisions about communities are made by the people who live in our communities, not the billionaires or data center companies in Washington D.C.”
Ohio Democrat Sherrod Brown, who is heading back to the Senate after defeating incumbent Republican Sen. Jon Husted, was blunter still in his own victory speech: “I do not work for data centers.”
Governors add state-level pressure
Democratic governors also attacked data centers in their victory speeches. Pennsylvania Gov. Josh Shapiro, who signed an executive order in August to slow data center development, said big tech companies shouldn’t determine residents’ futures. “Instead, the folks in our local communities get the final say,” he said.
CNBC reported that the state perhaps most important to the data center build-out is Texas, which is home to 27% of planned data center capacity, according to Wells Fargo. Gina Hinojosa, the Democrat who ousted incumbent Republican Gov. Greg Abbott, did not address data centers directly in her victory speech, though they played a key role in her campaign.
In a video posted to her X account in late October, Hinojosa pledged to halt new data center approvals in the state:
“When I am governor, I will issue a moratorium, a ban, on all data center approvals until laws can be passed by the legislature to protect Texans,” she said.
“This is about one fight. Is this going to be a Texas that is by and for the people, or is this the billionaire’s world and we just live here? Data centers are part of that fight.”
Local referendums feed the national fight
The local ballot measures Sanders pointed to are the foundation of the argument he and other Democrats are now making at the federal level: that voters in individual communities, asked directly, approved restrictions on data centers. That result is what Sanders cited in arguing for a nationwide pause rather than a patchwork of local limits, and what Hinojosa has promised to translate into a statewide freeze on data center approvals in the state with the largest pipeline of planned capacity.
For now, the calls for a data center moratorium remain statements of intent from individual lawmakers and governors-elect rather than enacted policy. The market reaction reported by CNBC — concentrated in semiconductor shares — reflected investor concern that Democratic wins could slow data center construction.