DOJ Intervenes to Dismiss NAACP Pollution Suit Against Elon Musk’s xAI

xAI, a subsidiary of SpaceX, operates the Colossus 2 data center near Memphis, Tennessee. The facility supplies power to the Grok chatbot, which the company markets as an “anti-woke” alternative to ChatGPT. The Trump administration has framed AI development as a national-security priority.

CNN

NAACP filed a citizen suit in April 2026 alleging xAI operates dozens of methane turbines without Clean Air Act permits, powering the Colossus 2 data center, seeking $124 k daily fines and an injunction.

Earth.org

The Justice Department (DOJ) filed a motion in June 2026, citing executive authority and national, economic, and energy security. It argued Grok supports Department of Defense operations—one of four AI models used in recent Iran strikes—and that the Clean Air Act gives the United States primacy over citizen suits. Associate Attorney General Stanley Woodward and Principal Deputy Adam Gustafson signed the filing. xAI says the turbines are temporary mobile units exempt from permits; Mississippi’s DEQ agrees.

Mississippi Free Press

EPA estimates >5,300 tons NOx, 433 tons PM2.5, 47 tons formaldehyde annually. These pollutants are linked to asthma, cardiovascular disease, and cancer. Turbines sit near homes, schools, and predominantly Black neighborhoods in Southaven, MS and North Memphis, TN.

Earth.org

Earthjustice and the Southern Environmental Law Center call the DOJ move a “massive power grab.” NAACP director Abre’ Conner stresses citizen suits as a “bedrock insurance” for communities. Columbia Law professor Michael Gerrard warns of eroding community enforcement. Rep. Justin J. Pearson calls the national-security rationale a “fear-mongering cop-out.”

DOJ seeks to dismiss air pollution lawsuit against xAI data center

State DEQ says turbines are temporary mobile units exempt from permits; the NAACP argues federal law treats continuously operating trailer-mounted units as stationary, requiring permits. The DOJ does not dispute emissions but claims security concerns override enforcement.

Trump DOJ Says xAI Gas Turbines Needed for National Security (1)

• “The Department of Justice will not sit idly by while private organizations use environmental laws to undermine our national security,” — Adam Gustafson, Principal Deputy Assistant Attorney General, Environment and Natural Resources Division.

CNN

• “Citizen suits are a bedrock insurance policy for communities to hold polluters accountable for decisions that cause them harm,” — Abre’ Conner, NAACP Director of Environmental and Climate Justice.

CNN

• “ The SELC called the intervention a “massive power grab” by the Trump administration.” — Kym Myer, Litigation Director, Southern Environmental Law Center.

Electrek

• “If a court grants the DOJ’s motion, it will leave millions of Americans defenseless against greedy billionaires and corporations,” — Justin J. Pearson, Tennessee State Representative.

Environmental Advocates Condemn DOJ’s xAI Intervention

The court’s ruling will determine whether executive authority can override citizen suits and could set precedent for AI-related infrastructure. xAI plans to acquire up to $8 billion in additional mobile turbines through 2029. Further community lawsuits are expected.

DOJ backs xAI in lawsuit over unpermitted gas turbines, citing national and energy security