2026 Membership Book FINAL

Case: 3:25-cv-00698 Document #: 1 Filed: 08/20/25 Page 1 of 47

UNITED STATES DISTRICT COURT FOR THE WESTERN DISTRICT OF WISCONSIN

HO-CHUNK NATION,

) ) ) ) ) ) ) ) ) ) )

Plaintiff,

Case No.: 25-cv-698

v.

KALSHI INC., KALSHIEX LLC, ROBINHOOD MARKETS, INC., ROBINHOOD DERIVATIVES LLC,

and DOES 1-20,

Defendants. ) ____________________________________________________________________ COMPLAINT FOR DECLARATORY AND INJUNCTIVE RELIEF AND MONEY DAMAGES _______________________________________________________________________________

INTRODUCTION

1. This is an action brought by the Ho-Chunk Nation (the “Nation”), a federally recognized Indian Tribe, seeking a preliminary and permanent injunction against the defendants to prevent them from engaging in illegal sports gambling on the Nation’s Indian lands in direct violation of the Indian Gaming Regulatory Act, 25 U.S.C. § 2701 et seq. (“IGRA”), the Nation’s Tribal-State Gaming Compact (“Compact”) with the State of Wisconsin (“State”) entered into pursuant to the IGRA, the Nation’s Gaming Ordinance (“Ordinance”) approved by the Chairman of the National Indian Gaming Commission pursuant to the IGRA, and the Tribal Gaming Commissions’ regulations adopted pursuant to the Nation’s federally approved Ordinance and Compact.

1

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