The former congressman, who lost his primary last summer, has become one of the few voices inside the Republican Party criticizing the spread of disinformation and conspiracy theories, including the idea that the 2020 presidential election was stolen, which led to the Capitol riot…

Riggleman, who also served as an Air Force intelligence officer, is expected to help the committee catalog and track the mistruths that circulated online and on social media before thousands of former President Donald Trump’s supporters gathered in Washington and descended on the Capitol hoping to overturn the election results.