Artem Severiukhin, 15, won a European Championship karting race in Portugal Sunday. As he celebrated he appeared to do a Nazi salute, sparking outrage in the motorsport world. In a video, Severiukhin has denied intentionally making the gesture, and called himself a "fool." Artem Severiukhin, a 15-year-old Russian kart racer, denied making a Nazi salute and supporting fascism after he appeared to make the gesture after a race over the weekend. Severiukhin appeared to make the gesture after winning the first round of the European Championship in Portugal on Sunday in the OK category, karting's second-highest level of competition. As...