A group at the center of conservative judicial activist Leonard Leo’s network funneled $750,000 to an influential new lobbying operation that pushes anti-LGBTQ+ legislation around the country, new tax records show.

Do No Harm presents itself as a grassroots association of doctors against gender-affirming care and diversity efforts in the medical profession. The group, which was founded in 2022, does not disclose its donors. But newly disclosed tax filings provided to HuffPost by Accountable.US, a progressive watchdog, show that the Concord Fund, the funding arm of Leo’s network, donated $750,000 in 2022 to Do No Harm Action, the group’s official lobbying effort.