United States Secretary of Homeland Security

Oregon Attorney General Dan Rayfield and Illinois Attorney General Kwame Raoul are leading a multistate lawsuit, filed in U.S. District Court in Eugene, accusing the Treasury Department and its Financial Crimes Enforcement Network (FinCEN) of gutting the Corporate Transparency Act. The 2021 bipartisan law required businesses to disclose ownership information to help authorities track money laundering, shell companies, and fraud. A FinCEN rule issued in August 2026 exempted roughly 99.9% of businesses from reporting and the agency moved to delete existing ownership data. The suit, joined by nearly 20 states and Washington, D.C., claims the changes violate federal rulemaking law and seeks to restore the database.

The Trump administration has warned California election officials that processing ballots cast by suspected noncitizen voters could expose them to criminal investigation and prosecution. A letter from acting deputy attorney general Trent McCotter called noncitizen voting a federal crime and said officials who knowingly facilitate it risk being treated as aiders and abettors. The DOJ sued California after it missed a 48-hour deadline to cross-check a federal list of roughly 20,000 flagged names; federal prosecutors have since charged 28 green-card holders across California, 11 arrested, saying all appeared on that list. Secretary of State Shirley Weber called the demand unprecedented and said officials provided too little information to verify names. Governor Newsom calls the suit voter suppression; the dispute looms over competitive California House races in the midterms.

The Department of Justice escalated its dispute with California over a list of voters flagged as possible noncitizens, filing an emergency lawsuit Oct. 15 in federal court in the Central District of California after state officials missed a roughly 48-hour deadline set by Deputy Attorney General Trent McCotter to review the names. DOJ had sent Los Angeles County Registrar-Recorder Dean Logan and Secretary of State Shirley Weber a password-protected thumb drive naming more than 20,000 "likely noncitizens," identified through a multiagency USCIS and Homeland Security Investigations review of state voter and federal citizenship data. The 15-page complaint accuses California of violating the Constitution's supremacy clause by knowingly sending and counting mail ballots from likely noncitizens, and asks the court to order the state to set aside such ballots until citizenship is verified. Attorney General Todd Blanche called the alleged practice "state-facilitated voter fraud."

Logan's office declined to open the drive, citing data privacy protocols, while Weber argued federal officials provided insufficient evidence. Governor Gavin Newsom called the lawsuit a "sad, desperate attempt" by President Trump to suppress California voters weeks before Election Day. The suit is the administration's first direct attempt to block vote-counting, following a broader push including a blocked citizenship-verification mandate, a mail-voting executive order partly struck down by the Supreme Court, and roughly 30 similar voter-roll suits against other states with limited success. Senate Democrats have demanded oversight briefings on the administration's election-interference efforts.

The Department of Homeland Security confirmed it issued a waiver on Oct. 2 suspending New Mexico's Water Code to secure groundwater for border wall construction, fueling an ongoing dispute between the state and federal government. Homeland Security Secretary Markwayne Mullin's directive, published in the Federal Register, cited the El Paso Sector's status as an "area of high illegal entry" to justify bypassing state water protections for road building, concrete production, and dust suppression.

New Mexico officials, including state engineer's office counsel Nathaniel Chakeres, called the move unconstitutional, arguing the state's water belongs to the public under its constitution. Officials say Customs and Border Protection has continued pumping from unpermitted wells despite agreeing to pause new drilling, and described unsafe well conditions risking groundwater contamination. The conflict follows months of tension, including a land dispute with a Catholic diocese, farmer complaints over aquifer depletion, and an August lawsuit by the state against the federal government and its contractors over unauthorized drilling near the border.

Virginia Attorney General Jay Jones says the Department of Homeland Security may have violated multiple state laws after a whistleblower alleged DHS employees misrepresented themselves on voter lookup tools to hunt for noncitizen voters. In a letter to Homeland Security Secretary Markwayne Mullin, Jones demanded written confirmation of whether DHS directed anyone to access Virginia voters' information without their consent, noting state law bars disclosure of such protected data to federal authorities absent a court order. Virginia's lookup tools are limited to individuals attesting under penalty of law that they are checking their own records.

The whistleblower report, released by Democratic Senate leaders, includes training transcripts showing USCIS staff were pulled from other duties in late August for a short training session, then tasked with running DHS-provided lists through state voter systems to flag "unlawful voters," reviewing roughly 40 people daily. The Trump administration has cited noncitizen voting as a potential fraud risk ahead of the midterms, despite research showing it is rare. The Justice Department has separately sued for voter data in 30 states and Washington, D.C., without success so far.

Six landowners and the nonprofit Conserve Big Bend, representing roughly 230 additional landowners across five counties, have sued the Department of Homeland Security, CBP, DHS Secretary Markwayne Mullin and CBP Commissioner Rodney Scott in Washington, D.C. federal court to block border wall construction in the Big Bend region of Texas. The suit is part of a broader $46 billion effort to build 30-foot steel bollard walls, vehicle barriers and surveillance infrastructure along the southern border, and seeks an injunction covering the entire region, including barriers inside Big Bend National Park.

Plaintiffs argue DHS unlawfully issued waivers designating Big Bend an area of "high illegal entry," despite the sector accounting for under 1.5% of southwest border apprehensions over five years, and claim landowners' Fifth Amendment due process rights are being violated. Opposition has grown since February, when eminent domain letters went out, drawing bipartisan pushback from sheriffs, officials, tour operators and ranchers who warn the wall would cut off Rio Grande water access, harm tourism, wildlife and sacred sites. Over $7 billion has already been awarded for Big Bend Sector wall contracts.

Denver has joined the League of United Latin American Citizens, Common Cause and UnidosUS in a federal lawsuit against the Department of Homeland Security, Secretary Markwayne Mullin, ICE and Acting ICE Director David Venturella, seeking to block armed immigration agents from being stationed at polling sites during the midterms. The suit argues such deployments would violate a Civil War-era law barring armed federal forces at election sites except to repel armed enemies, and cites past ICE activity near polling locations in Texas, California and New York as evidence of a broader "Polling Place Policy."

DHS disputes that any such policy exists, saying enforcement is intelligence-driven and tied to specific threats or active warrants, a point Mullin has echoed. Denver Mayor Mike Johnston and Clerk and Recorder Paul López say the city has trained election workers to identify and respond to federal agents, and vowed to remove and prosecute any agents unlawfully present. The case adds to Denver's ongoing legal clashes with the administration over immigration enforcement.