A Former Obama Operative Built a New Anti-Republican Attack Machine -- Bloomberg

Tangentially, see How the Kavanaugh Information War Mirrors Real Warzones (Wired)

"Before he was a banker, Burton, 38, was a practitioner of the dark art of opposition research, or “oppo”—digging up and surreptitiously deploying damaging information about politicians. As it did for so many people, Donald Trump’s election turned Burton’s life upside down. He quit his job, joined a Resistance group, and devoted himself to returning his country to the path he’d believed it was on when he worked for Barack Obama’s campaign a decade ago.

Some Resisters march or knock on doors; others raise money or run for office. Burton felt his gifts lay elsewhere: namely, in tearing down political opponents. Over the past year, backed by mysterious donors, he’s organized what may be the most audacious grass-roots project in the age of Trump. Burton has amassed an army of 16,000 amateur sleuths who, with professional guidance, have spent months ferreting out damaging material on scores of vulnerable Republicans in Congress and state legislatures. Now he’s ready to unleash it just in time for the midterms. As he told me, “We’re going to do with real information and real Americans what the Russians tried to do with fake information and fake Americans.”"

A Former Obama Operative Built a New Anti-Republican Attack Machine -- Bloomberg