How self-revolution sustains a century-old communist party's vitality

The Communist Party of China marks 105 years since its founding — and it's crediting much of its staying power to one relentless effort: rooting out corruption from within. The leadership calls it a self-revolution, turning the blade inward. CGTN reporter Feng Yilei visits a dedicated party spirit education base in Beijing, and sees how the campaign works from ideological education to institutional checks.