Our Work

The U.S. Department of Homeland Security has vastly expanded Immigration and Customs Enforcement’s (ICE) presence across the country, extending its reach to nearly every state and major city. In response, state and local governments are increasingly looking to location-specific protections, and to property law more broadly, to address the effects of this federal presence.

State courts are encountering a new type of “vote dilution” claim, which asserts that certain election rules or practices are unconstitutional because they increase the hypothetical risk that fraudulent votes which will be cast, which would dilute the weight of “legal” ballots. These hypothetical vote dilution claims increasingly invoke state constitutional rights. With sparse, unsettled, and often conflicting precedent on these types of claims, state courts may understandably find these claims difficult to adjudicate, especially in the highly charged election space. This Report offers state courts context on these claims and analytical frameworks with which to evaluate them under state constitutions.

Mail voting is under unprecedented federal pressure heading into the 2026 midterm elections. From the White House to the Supreme Court to Congress, a series of developments is threatening a form of voting that tens of millions of Americans rely on—and that was relatively uncontroversial until just a few years ago. This explainer examines how mail voting became a partisan battleground, what the current federal threats mean for mail voting, and what states, election officials, and advocates can do in response.

"'It has arguably never been harder in American history than it is today, in 2026, to sue a federal official for money damages if they violate your constitutional rights,' Harrison Stark of University of Wisconsin Law School said."

State and local governments are increasingly using property law to push back on ICE operations. This report unpacks the viability of these efforts, from banning new detention centers to barring officers from staging operations on city property.

"If you're skeptical of states going after ICE agents in particular, ... there's a really strong originalist case that states have this power."

As part of President Trump’s efforts to expand federal control over the country’s historically state-run election infrastructure, the U.S. Department of Justice has demanded copies of states’ complete voter registration lists, including voters’ highly sensitive data like birthdates, partial Social Security numbers, and driver’s license numbers. The Justice Department has filed 31 federal lawsuits (so far)—against 30 states plus Washington, D.C.—seeking orders compelling these jurisdictions to turn over their data. This tracker monitors the Justice Department’s lawsuits.

"States have broad power to regulate within their borders unless the U.S. Constitution bars it, but many of these laws raise novel issues that courts will have to sort out, said Harrison Stark, senior counsel with the State Democracy Research Initiative at the University of Wisconsin Law School."

The U.S. Justice Department has demanded states' complete, unredacted vote registration lists. States have mostly declined to provide their full, unredacted voter registration lists. This report examines the questions raised by the federal government's demands about the long-established authority of states to administer elections and the scope of the federal government’s role in the voter registration process.

As the federal government carries out aggressive immigration raids in major cities across the U.S., state officials are facing off with the federal government over a centuries-old question: When can states prosecute federal officials for violating state criminal law?