Some people said militant anti-abortion activist Matthew Trewhella was a ’90s figure who’s no longer relevant, but our reporting shows he’s influencing policies, bills and movements today.

In the fall of 2022, Phoebe Petrovic, an investigative reporter at Wisconsin Watch and a member of ProPublica’s Local Reporting Network, noticed a pastor and his church appearing in local news coverage for their anti-LGBTQ+ protests. Looking closer revealed Pastor Matthew Trewhella’s startling history. And digging even deeper, she noticed an untold story: his broader influence on modern Republican politics. His rise helps illustrate the growing power of the Christian right in the Republican party. Here, Petrovic describes how she reported the story and what she learned.