Can Democrats Slow The $800 Billion AI Boom?
Part of our midterms guide. Start here: what the vote really changes for your money.
What Does Everyone Already Know?
AI data-center stocks fell on the result. On Wednesday, CoreWeave closed down about 10%, IREN about 11% and Nebius about 7%; power producers Vistra and Constellation fell about 14% and 7%. The fear: a Democratic Congress, and Democratic governors, could restrict the buildings the whole AI boom runs on.
Who Fell, And Who Didn’t?
| Group | Move, Wed close | Why it’s exposed |
|---|---|---|
| Neoclouds (CoreWeave, IREN, Nebius) | −7% to −11% | They rent out chips; growth needs new buildings and power |
| Power (Vistra, Constellation, GE Vernova) | −7% to −14% | They sell power and turbines to data centers, many in Texas |
| Chips (Nvidia) | about −3% | Sells to every data center, in every state and country |
| The buyers (Microsoft, Amazon, Alphabet, Meta) | +1% to +7% | They pay for the buildings |
The companies that build data centers fell. The companies that pay for them rose.
That split is the tell. If investors thought AI demand itself was in danger, the biggest AI companies would have fallen too. Instead, the market sold the names whose revenue depends on how fast new buildings go up, and bought the names that might spend a little less doing it. That’s our reading of one day’s trading, not a measured fact, and it could reverse.
See more lines: the day’s other moves
Applied Digital fell about 7% and Core Scientific about 10%; SpaceX, whose founder spent heavily in Texas, fell about 4%. NextEra, a renewables-heavy utility, rose about 5%, and solar names jumped. Oracle closed down about 2%.
Can Congress Actually Stop A Data Center?
Not really. A federal law that meaningfully stalls data-center construction looks like a long shot. A national moratorium has been proposed by progressives, but even a Democratic Congress lacks 60 Senate votes, and the President could veto it. What Congress can do is hold hearings, subpoena executives and write budgets.
Here’s the twist: Congress’s biggest effect may be what it now won’t do. The White House wants one federal AI rule that overrides the states. A Democratic Congress is unlikely to pass it. That leaves the real power where it already was.
So Who Does Control It?
Four groups, all below the federal level:
Local voters and zoning boards. Data-center ballot measures were on the ballot in 13 states. One tracker counted 28 measures to limit data centers; as of Wednesday morning, virtually every one was on track to pass. In Ohio alone, at least 14 towns and cities passed bans or other limits.
Governors. Democrat Gina Hinojosa won the Texas governor’s race after promising a moratorium on new data centers, tighter water and power rules, and an end to their tax breaks. Democrats also won or kept the governor’s office in Georgia, Pennsylvania and Ohio.
State legislatures. A Texas pause needs lawmakers. Democrats are on track to take the Texas House, but the Texas Senate looks set to stay Republican. The legislature’s next regular session opens on Jan. 12, 2027. So a full pause isn’t a given, and we think a slower, costlier approval process is the more likely outcome.
Utility regulators. State commissions decide who pays for the new power plants and grid lines data centers need. Raising the price of a hookup slows building without banning anything.
Now add up where the buildings are planned:
| State | Share of planned U.S. data-center power | Governor after Tuesday |
|---|---|---|
| Texas | about 27% | Democrat (new) |
| Georgia | about 7% | Democrat (new) |
| Ohio | about 5% | Democrat (new) |
| Pennsylvania | about 5% | Democrat (re-elected) |
About 44% of planned data-center power sits in states that just elected Democratic governors.
The shares are Wells Fargo’s estimates of planned gigawatts; the 44% is our sum. This is not only a Democratic issue. Texas Gov. Greg Abbott, who once wanted the state to be the “epicenter” of AI, announced his own pause before the vote. In NBC’s exit poll, 57% of voters said AI will do more to hurt society than help. The backlash is local, bipartisan and older than Tuesday.
How Much Money Is Riding On It?
A lot. Five of the biggest spenders (Microsoft, Amazon, Alphabet, Meta and SpaceX) are on track to spend about $803 billion to $828 billion on capital projects in 2026, and had already spent $556 billion through September. Some Wall Street models for 2027 run above $1 trillion. Microsoft has already cut its 2026 estimate to about $170 billion, because third-party data-center capacity is arriving late. That’s the point: the constraint on AI spending is already buildings and power, not money. Anything that slows permits stretches the same dollars over more years.
What Does Our Data Say About The Drop?
That Wednesday was a small step in a big fall that started weeks before the vote. At Tuesday’s close, the build-out suppliers were already down sharply:
| Stock | 1-month return | 12-month return | Below 52-week high |
|---|---|---|---|
| Super Micro (SMCI) | −28% | −38% | −37% |
| Dell (DELL) | −27% | +158% | −31% |
| AMD (AMD) | −24% | +86% | −25% |
| Micron (MU) | −20% | +265% | −30% |
| Arista (ANET) | −18% | +8% | −22% |
| Nvidia (NVDA) | −12% | 0% | −14% |
| Oracle (ORCL) | −11% | −50% | −50% |
The market was pricing a slower build-out for a month. The vote added a reason.
Some of these names had their own good news on Tuesday night, with strong results and outlooks. By Wednesday’s close, AMD was up about 1% and Arista about 5%, while Super Micro fell about 6%. By Wednesday’s close, Arista held a 5% gain and AMD 1%, while Super Micro fell 6%. Company earnings are pointing one way and state politics the other. The stocks most at risk are the ones whose growth depends on new buildings in specific places: neoclouds and Texas power producers. The least exposed are chipmakers that sell everywhere, and the buyers, who can build elsewhere, including overseas.
Here’s what that means at home: a $1 million-plus portfolio can own the AI build-out three times over, through an index fund, through the megacaps and through their suppliers. A Trefis partner firm can show you how much of yours rides on it.
What Should You Do This Week?
1. Count your exposure. These 11 AI build-out companies (Nvidia, Broadcom, Micron, AMD, Dell, Arista, Super Micro, and the four buyers) were worth about $20.4 trillion at Tuesday’s close. That’s roughly 30% of the S&P 500’s total value. So a $2 million portfolio with $1.2 million in an S&P 500 fund already carries about $360,000 of the data-center build-out; add $200,000 of Nvidia and Micron held directly and about 28% of the whole portfolio rides on one theme. Write your own number down before deciding anything.
2. Size a neocloud or power holding from its worst case. These stocks can fall 50% to 60% in a bad stretch; IREN, CoreWeave and Nebius each fell 10% to 16% in a single session in mid-October. If the most you’re willing to lose on one position is $30,000 and you assume a 60% fall, the position should be no larger than $50,000. If it’s larger, trim to that size now, not after the next drop.
3. Protect a big gain with a collar instead of selling. Say you own Micron, up 265% over 12 months and $795.23 at Wednesday’s close. Buying a $700 put expiring December 17, 2027, about 13 months out, costs about $114.45 a share, and selling a $1,080 call with the same expiry pays about $114.40 (midpoints of the bid and ask at Wednesday’s close), so the pair costs only about $0.05 a share net. That sets a floor about 12% below Wednesday’s price and a cap about 36% above it until December 2027. The risk: you give up everything above $1,080, you still lose down to $700, and a collar on stock you already own has tax rules worth checking first.
This is education, not personal advice; options aren’t right for every account.
What’s The Bigger Idea?
We call it Exposure hides in plain sight. Most investors who say they don’t own “AI data centers” own them anyway: in the index fund, in the megacaps, in the chipmakers that sell to them. Wednesday showed that a governor’s race in one state can move that exposure, and that most of it isn’t labeled. Count it before the market counts it for you.
Congress won’t stop the boom. States could slow it. A Democratic Congress can’t pass a moratorium past a veto. But about 44% of planned data-center power sits in states that just elected Democratic governors, led by Texas, and early counts showed voters passing nearly every local limit on the ballot. We expect slower and costlier, not stopped. The builders and Texas power names carry that risk; the buyers and chipmakers that sell everywhere carry much less.
What Should You Ask Next?
- Democrats won Congress. Did our midterm calls hold up? The full scorecard of what moved.
- How much AI do you really own? The exposure count, step by step.
Follow this story with us: we’ll track the Texas pause and the data-center names at Friday’s close, and tell you what changed.
Would Your Portfolio Survive A Slower AI Build-Out?
Elections change the odds, not your plan. If you have $1 million or more invested, see what Tuesday means for your portfolio in a free 15-minute call with a Trefis partner firm.
For questions about this article or underlying research, email help@trefis.com.