A conservative dark money group led by former president Donald Trump’s judicial adviser Leonard Leo bankrolled Amy Coney Barrett’s Supreme Court confirmation campaign with nearly $22 million in anonymous cash, while another nonprofit Leo helps steer saw a fundraising bonanza and showered cash on other organizations boosting Barrett, according to tax returns obtained by us.

The new tax returns shed light on how Barrett’s successful, last-minute confirmation campaign was aided by a flood of dark money. They also reveal the rapid growth of Leo’s already highly successful dark money network and its tentacles in the broader conservative movement.

Corporate interests with access to nearly unlimited money have a huge stake in tilting the court to the right: in recent years, the court has played a pivotal role not only in swaying social policy, but also in shifting economic policy and corporate regulations. In Barrett’s first year, she has already sided with corporate interests on a landmark climate case involving an oil giant that employed her father for decades, and she refused to recuse herself in a donor transparency case involving a foundation tied to a dark money group that backed her confirmation.