A Singaporean defence expert who has regularly interacted with North Korean diplomats here until last year said he expects Pyongyang to conduct a seventh nuclear test or a nuclear warhead re-entry test, which is its next crucial step in achieving recognition as a nuclear power, around the US presidential election in November. “My assessment, with high level of confidence, is that the Kim Jong-un regime will resume testing strategic nuclear weapons,” Graham Ong-Webb, an Adjunct Fellow at Singapore’ S. Rajaratnam School of International Studies said. “Under the current Trump presidency, I think there is zero prospect for a summit. North Korea has declared that the US has failed to achieve expected compromises with them.”