The U.S. Court of Appeals for the Second Circuit ruled Wednesday that a federal civil lawsuit alleging that former President Donald Trump, his children and the Trump Corp. illegally profited by promoting doomed products to unsophisticated investors could not be shunted to arbitration.

The ruling, from a unanimous panel of the Manhattan-based appeals court, rejected the Trump family’s bid for arbitration, and cleared the way for discovery to continue in the nearly three-year-old action over the former president’s business dealings. The decision means that the litigation will play out in public and not behind closed doors.