Democrats win Congress as local votes restrict data centers

Overview

Updated 2 hours ago

Democrats won control of the U.S. House and Senate in the Nov. 3 midterms, with results reported through Nov. 5. They also won governorships in Texas, Georgia, Ohio, Wisconsin and Iowa.

The change puts Democrats in charge of committee agendas and infrastructure spending. It also comes as voters approved new data center restrictions in 40 of 41 local ballot measures.

Why it matters

Democratic control of Congress changes which infrastructure projects get funded and how closely data center construction is scrutinized.

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Key Indicators

237

House seats won by Democrats

Democrats had won 237 House seats as of Nov. 4, against 139 for Republicans.

Senate seats won by Democrats

Democrats led the Senate count 54 to 44 as of Nov. 4.

40 of 41

Local data center measures approving restrictions

Voters approved 40 of 41 local ballot measures setting new restrictions on data centers.

90%

Year-over-year growth in data center construction

The Associated General Contractors of America reported data center construction surged 90% year over year.

$11.25B

California Proposition 1 housing bond

The bond package funds income-qualified state and veterans housing programs and related infrastructure.

$36.8B

Infrastructure advance appropriations sought by Cantwell

Sen. Maria Cantwell has pushed Congress to approve $36.8 billion in advance appropriations for infrastructure grants.

Voices

Curated perspectives — historical figures and your fellow readers.

People Involved

Hakeem Jeffries

House Democratic leader, expected Speaker

Expected to become House Speaker in January 2027

Mike Johnson

Republican Speaker of the House

Will not seek minority leadership post in new Congress

James Talarico

Democratic Senate candidate in Texas

Senator-elect from Texas

Gina Hinojosa

Democratic gubernatorial candidate in Texas

Governor-elect of Texas

Maria Cantwell

Ranking Democrat, Senate Commerce, Science and Transportation Committee

Poised to chair Senate Commerce Committee

Robert Garcia

Ranking Democrat, House Oversight and Government Reform Committee

Expected to chair House Oversight Committee

Organizations Involved

U.S. House of Representatives

Congressional chamber

Democrats won control in the 2026 midterms

The lower chamber of Congress, where Democrats are set to take the majority in January 2027.

United States Senate

Legislative chamber

Democrats won control in the 2026 midterms

The upper chamber of Congress, where Democrats led 54 to 44 as of Nov. 4.

Associated General Contractors of America (AGC)

Construction trade association

Reported data center construction growth

A construction industry trade group that tracks building spending and reported data center construction surged 90% year over year.

House Oversight and Government Reform Committee

Congressional committee

Expected to be led by Democrats in the new Congress

The House committee that investigates federal agencies and executive branch conduct.

Timeline

5 events Latest: Today

Tap a bar to jump to that date

November 2026
ENR details changed construction agenda
Today Report

Engineering News-Record reports Democratic wins and data center ballot limits.
Today
Johnson declines minority leadership bid
Statement

Speaker Mike Johnson says he will not seek the minority leader post.
Yesterday
Democrats win House and Senate
Election

Democrats capture both chambers and several governorships, including Texas.
2 days ago
Voters back data center restrictions
Ballot measures

All but one of 41 local data center measures pass, setting new restrictions.
2 days ago
Construction group reports data center building surge
Industry data

The Associated General Contractors of America says data center construction is up 90% year over year.
3 days ago

Scenarios

Congress restores $36.8 billion in infrastructure advance appropriations

Possible Resolves by Q3 2027

Discussed by: Sen. Maria Cantwell, as reported by Engineering News-Record

Cantwell has pushed Congress to approve $36.8 billion in advance appropriations for infrastructure grants. With Democrats controlling both chambers, she is positioned to move the funding through the Senate Commerce Committee. The test is whether it survives the full appropriations process.

House Oversight opens formal DHS contracting investigation

Likely Resolves by Q1 2027

Discussed by: Rep. Robert Garcia, as reported by Engineering News-Record

Garcia vowed before the election to investigate alleged pay-to-play in Department of Homeland Security contracting. As expected Oversight chair, he can issue subpoenas and hold hearings. The trigger is a formal committee announcement or subpoena.

More states adopt data center construction limits

Possible Resolves by Nov 5, 2027

Discussed by: Engineering News-Record and local ballot results

Voters approved 40 of 41 local data center restrictions, and New York and Texas already have statewide pauses. If the pattern spreads, more state legislatures could take up siting rules or moratoria. The measure is whether at least five additional states enact statewide limits.

Historical Context

3 moments from history that rhyme with this story — and how they unfolded.

November 1994

Republican Revolution (1994)

Republicans won the House and Senate for the first time in 40 years, powered by the Contract with America. Newt Gingrich became Speaker and committees launched investigations of President Bill Clinton.

Then

Clinton shifted right on welfare and crime, and the two sides fought two government shutdowns in 1995 and 1996.

Now

Republicans held Congress until 2006, and the wave set a template for nationalized midterm campaigns.

Why this matters now

Shows how a midterm wave changes committee chairs and oversight, as Democrats are about to do.

November 2006

Democratic takeover of Congress (2006)

Democrats won both chambers amid the Iraq war and Republican scandals. Nancy Pelosi became the first female Speaker, and committees investigated the Bush administration.

Then

Democrats passed a minimum wage increase and pushed for Iraq withdrawal, while President George W. Bush used vetoes to block some bills.

Now

The Democratic majorities helped pass the Affordable Care Act in 2009 and 2010.

Why this matters now

The closest parallel: a two-chamber Democratic win after a Republican presidency, with oversight and infrastructure on the agenda.

November 2018

Democratic House win (2018)

Democrats won the House but not the Senate, giving them subpoena power and committee gavels. They launched investigations into President Donald Trump and later impeached him.

Then

The House passed bills that stalled in the Republican Senate, and oversight fights dominated Washington.

Now

The 2018 win previewed how a single chamber can drive investigations even without full control of Congress.

Why this matters now

Shows what a House majority alone can do; Democrats now have the Senate as well.