It is up to China to determine its role at the G20 Summit in New Delhi, said US National Security Advisor Sullivan on Tuesday. He said that if Beijing chooses to act as a ‘spoiler,’ that option remains available to them. The top White House official made the remarks during a press briefing on the possible impact of India-China border tensions on the G20 taking place this week in New Delhi. When asked if the division between the two neighbours will affect cooperation at the G20, Sullivan said, “As far as the question of tensions between India and China affecting...