FACTBOX: Democratic gains, data center backlash set new course for US energy policy

Democrats swept the Nov. 3 US midterm elections, winning majorities in the US House of Representatives, US Senate and numerous statehouses in a "blue tsunami" in which energy prices and infrastructure were central.

Surging data center electricity demand collided with voter anxiety over power bills, forcing both parties to address who pays to serve large users. Voters also weighed fossil fuels against renewables, seeing diverging platforms often along party lines.

Democratic gains in Congress, governors' offices and utility commissions could bring tougher oversight of utility rates and spending, new conditions on data center growth and a changed outlook for natural gas demand, renewable procurement and utility regulation.

The following highlights key races and ballot measures relevant to energy markets:

US Senate races

Alaska

Overview: In a race too close to call Nov. 6, former Democratic Representative Mary Peltola led Republican Senator Dan Sullivan by a few hundred votes but not enough to avoid the state's ranked choice voting process with 74% of votes counted.

Energy impact: A Sullivan win keeps a leading Senate advocate for Arctic drilling and the Alaska LNG project. A Peltola win, from a Democrat who has tied energy prices to President Donald Trump's policies, would likely make it harder to pass legislation expanding oil and gas development.

Michigan

Overview: Democrat Abdul El-Sayed defeated Republican Mike Rogers to hold retiring Senator Gary Peters' seat.

Energy impact: El-Sayed campaigned on enforceable conditions for new data centers, including local rate protections.

North Carolina

Overview: Democrat Roy Cooper, a former governor, defeated Republican Michael Whatley to flip retiring Senator Thom Tillis' seat, the state's first Democratic Senate win since 2008.

Energy impact: Cooper, like Whatley, opposed a federal ban on new data centers, but he backed municipalities' right to halt development.

Ohio

Overview: Democrat Sherrod Brown, a former senator, defeated Republican Senator Jon Husted in a special election, flipping the seat for the remaining two years of JD Vance's term.

Energy impact: Brown criticized Husted's past support for data centers as lieutenant governor. Husted's loss removes the lead Senate sponsor of the Ratepayer Protection Act.

Texas

Overview: Democratic state Representative James Talarico defeated Republican Attorney General Ken Paxton, flipping the seat for the first time since 1988.

Energy impact: Talarico highlighted data center-aligned donors in Paxton's campaign finance disclosures.

US House races

California-13

Overview: Democratic Representative Adam Gray defeated Republican Kevin Lincoln to hold a Central Valley district redrawn under Proposition 50.

Energy impact: Gray, a centrist on the House Natural Resources Committee, has helped advance bipartisan permitting reform. A Democratic majority will likely elevate the panel's oversight role.

Colorado-8

Overview: Democratic state Representative Manny Rutinel unseated Republican Representative Gabe Evans, flipping one of the country's most competitive seats.

Energy impact: Rutinel campaigned on lowering costs, citing rising gasoline prices under Trump administration policies. His win removes the co-author of the House-passed Ratepayer Protection Act as that version of data center cost-allocation legislation becomes less likely to advance.

Florida-14

Overview: Democratic Representative Kathy Castor defeated Republican Mike Beltran in a Tampa-area district Republicans redrew in their favor.

Energy impact: As the top Democrat on the Energy and Commerce Committee's Energy Subcommittee, Castor gains influence to shift the agenda toward oversight of utility rates, grid reliability and data center load growth.

Iowa-1

Overview: Democrat Christina Bohannan defeated Republican Representative Mariannette Miller-Meeks, flipping the seat on her third try.

Energy impact: Bohannan campaigned on lowering costs by repealing tariffs and cracking down on price gouging, while Miller-Meeks ran on Trump administration-backed policies.

Virginia-2

Overview: Democrat Elaine Luria defeated Republican Representative Jen Kiggans in a Hampton Roads rematch, reclaiming the seat she lost in 2022.

Energy impact: Luria campaigned on affordability. She replaces Kiggans, a backer of Dominion Energy's Coastal Virginia Offshore Wind project, whose cost has risen to $11.7 billion. Democratic oversight will likely be less hostile to completing the project, which adds supply to PJM Interconnection.

Gubernatorial races

Arizona

Overview: Democratic Governor Katie Hobbs won a second term, defeating Republican Representative Andy Biggs in a state Trump carried in 2024.

Energy impact: Hobbs' re-election keeps a renewables-friendly governor and a three-year pause on data center tax incentives. It sets up continued friction with the Republican-majority state utility commission, which repealed renewable energy standards in March.

Florida

Overview: Republican Representative Byron Donalds defeated Democrat David Jolly to succeed Governor Ron DeSantis, extending Republicans' hold on an office Democrats have not won since 1994, though by only about 1.4 percentage points.

Energy impact: Donalds' push for data centers to cover their electricity and water costs would limit cost shifting to ratepayers. His call for utilities to harden infrastructure against hurricanes points to higher grid capital spending.

Michigan

Overview: Democrat Jocelyn Benson defeated Republican John James to succeed term-limited Governor Gretchen Whitmer, keeping the office Democratic.

Energy impact: Benson's support for audits of aging pipelines adds regulatory risk to Enbridge's disputed Line 5 oil pipeline replacement, though she has not taken a position on the project. Key to regional propane supply, Line 5 carries crude and natural gas liquids that feed Michigan and Ontario refineries.

Minnesota

Overview: Democratic Senator Amy Klobuchar defeated Republican state Representative Lisa Demuth to succeed Democratic Governor Tim Walz.

Energy impact: Renewables-focused policy stays on track under Klobuchar, who has not committed to nuclear power. Her party's widened legislative majorities may make lifting the state's nuclear moratorium less likely.

New York

Overview: Democratic Governor Kathy Hochul won a second full term, defeating Republican Nassau County Executive Bruce Blakeman.

Energy impact: Hochul's win keeps a pragmatic course, where offshore wind is defended, some gas infrastructure is allowed, and large data center construction is paused pending new regulations, constraining near-term load growth. Climate policy stays moderated by ratepayer cost concerns.

Pennsylvania

Overview: Democratic Governor Josh Shapiro won a second term by a wide margin, defeating Republican state Treasurer Stacy Garrity.

Energy impact: Shapiro's "all of the above" strategy includes expanding clean energy and challenging utility rate increases. His re-election sustains pressure on PJM to rein in data center-driven capacity costs. His plan to codify data center standards would set terms for large-load interconnection and cost responsibility.

Texas

Overview: Democrat Gina Hinojosa, a state representative, ousted Republican Governor Greg Abbott from the office that has not been held by a Democrat since 1995.

Energy impact: Hinojosa's call for a data center moratorium until the legislature requires large loads to pay for the power and infrastructure they need challenges rapid large-load growth on the Texas grid, though any moratorium would need legislative approval.

Wisconsin

Overview: Democratic Milwaukee County Executive David Crowley defeated Republican Representative Tom Tiffany to succeed Governor Tony Evers, extending Democratic control beyond eight consecutive years for the first time.

Energy impact: Crowley favors more solar and lower emissions. Like Tiffany, he opposes shifting data center costs to ratepayers and supports ending data center tax credits and granting greater local control.

State utility commissions

Arizona Corporation Commission

Overview: Democrats Clara Pratte, a former federal and Navajo Nation official, and Jonathon Hill, an engineer and geologist, defeated Republicans Ralph Heap and Kevin Thompson for both open seats, cutting Republicans' 5-0 majority to 3-2.

Energy impact: Pratte and Hill cannot control decisions alone, so near-term policy is unlikely to change. But they can press for scrutiny of utility rate cases and for data centers to bear infrastructure costs, and could shift the commission's dynamic with Hobbs, whose clean-energy priorities often clashed with the panel that repealed the state's renewable energy standards.

Georgia Public Service Commission

Overview: Democrats Peter Hubbard and Shelia Edwards defeated Republicans Fitz Johnson and Josh Tolbert, respectively, giving Democrats a 3-2 majority on the commission for the first time since 1995.

Energy impact: The new majority will oversee Georgia Power's 2028 long-term plan and first rate case since 2022, likely bringing tougher scrutiny of data center-driven capacity additions and utility returns. The PSC could put more weight on renewables, storage and data centers covering their grid costs.

Texas Railroad Commission

Overview: Democrat Jon Rosenthal defeated Republican Bo French for a seat on the commission, which regulates oil and gas, pipeline safety and natural gas rates. He is the first Democrat elected to the panel since 1990.

Energy impact: Republicans keep a 2-1 majority so oil and gas rules are unlikely to change soon. But Rosenthal, a former oil field engineer, can push for stronger pollution enforcement, orphaned-well cleanup and scrutiny of gas utility pass-through rates, mainly through public debate.

Ballot initiatives

Ann Arbor, Michigan, Proposal E

Overview: Voters rejected the measure, which would have amended the city charter to require a municipal electric utility, by 951 votes, or 51.8% to 48.2%, leaving DTE Energy as the city's power provider.

Energy impact: DTE keeps control of rates, reliability and clean-energy procurement. The narrow margin suggests public power advocates will keep pushing, and similar campaigns elsewhere in Michigan could follow.

California Proposition 45

Overview: The measure appears headed for defeat, with 54.8% voting no and 64% of votes counted early Nov. 6, though it has not been called. It would set deadlines on permitting decisions for renewable energy and other critical infrastructure and limit challenges to project approvals.

Energy impact: A defeat leaves current permitting and project-challenge processes in place. Passage could speed renewable and grid projects and reduce litigation risk.

Colorado Initiative 177

Overview: Colorado voters rejected the measure, with 53.6% voting against as of early Nov. 6. It would have created a constitutional right to sell and buy natural gas for cooking and heating.

Energy impact: Building codes restricting natural gas remain unchanged unless regulators modify them. A lawsuit against Colorado and Denver's electrification policies is still moving forward.

Data center local ballots

Overview: Voters backed restrictions in 40 of 41 local data center ballot measures. Only Harwood, North Dakota, rejected restrictions. Ohio's 21 measures all passed, including a Trenton ban on data centers exceeding 25 megawatts that blocks a planned Amazon Web Services project.

Energy impact: Local opposition is expected to slow data center growth, likely pushing developers toward receptive jurisdictions. 451 Research by S&P Global is tracking 182 delayed or canceled US projects, about 77% tied to local opposition.