Justice Clarence Thomas and Samuel Alito dissented Tuesday as the Supreme Court refused to hear Florida’s lawsuit alleging that California and Washington improperly issued commercial driver’s licenses to undocumented immigrants, creating a public safety hazard on American roads.
The case centers on Florida’s claim that the two states violated federal standards requiring English proficiency and lawful immigration status for commercial drivers. The lawsuit followed a fatal highway crash involving a truck driver, drawing renewed attention to the intersection of immigration policy and transportation safety regulations.
What Happened
A majority of the Supreme Court declined to take up Florida’s original jurisdiction case against California and Washington, leaving Thomas and Alito to voice their objections in a published dissent. Florida had argued that both states improperly issued commercial driver’s licenses to individuals residing in the country illegally, bypassing federal requirements that applicants demonstrate English language proficiency and appropriate immigration status.
Under federal law, states cannot issue commercial driver’s licenses unless applicants pass a driver’s test, show sufficient English language comprehension, and provide proof of lawful immigration status. Florida contended that licensing practices in California and Washington deviated from these standards, potentially placing inadequately qualified operators of large commercial vehicles on highways.
The case drew particular attention after a deadly Florida highway crash. Thomas referenced the incident in his dissent, noting that the truck driver involved was unable to read road signs, underscoring Florida’s argument that safety risks materialized from non-enforcement of federal licensing standards.

The Reaction
Thomas and Alito argued that the Supreme Court held a constitutional obligation to hear the dispute. “If this Court does not exercise jurisdiction over a controversy between two States, then the complaining State has no judicial forum in which to seek relief,” Thomas wrote in his dissent.
The Constitution vests the Supreme Court with original jurisdiction over cases between states—meaning it is the sole court where such disputes can be filed. Thomas emphasized this unique constitutional role, writing that the justices had “no more right to decline the exercise of jurisdiction which is given, than to usurp that which is not given.”
Thomas characterized Florida’s allegations as substantive. He argued that violations of federal commercial licensing laws create tangible dangers on American highways and cited specific consequences: three Florida residents had died in road incidents he linked to the licensing dispute. His dissent stressed that allowing states to ignore federal transportation safety standards through licensing practices undermined public welfare across state lines.
What This Means
Florida now lacks a judicial avenue to pursue relief for the deaths and injuries its residents sustained. The rejection leaves unresolved the question of whether California and Washington’s licensing practices violated federal law, and whether other states face similar conflicts with blue-state policies on this issue.
The dissent signals a broader concern about the Supreme Court’s exercise of discretion over its constitutional jurisdiction. Thomas’s opinion highlights tension between the court’s power to decline cases and its obligation to settle interstate disputes—a function that has historically distinguished its role in the American judicial system. With seven justices choosing not to hear the case, questions remain about how courts will address future state-level conflicts over federal regulatory standards.
