Gina Miller's stunning Supreme Court victory against Boris Johnson is the latest legal triumph for the Guyana-born businesswoman, making her a hero to Brexit opponents, and a villain to its supporters.
The 54-year-old now has a 2-0 record against the government of the day in the highest court of the land, dealing hammer blows to the Brexit plans of then-prime minister Theresa May and current incumbent Boris Johnson.
Miller, an investment fund manager, has said she was moved to action immediately as the result of the 2016 referendum became clear, when her 11-year-old son told her: "You're going to do something, mummy, you always do."
"I'm in shock at the enormity of what has just happened," Miller said after the verdict, while Sky News journalist Lewis Goodall argued that she had had "more impact on the Brexit process than anyone else other than Theresa May."