The US president was denied the usual red carpet welcome and forced to 'go out of the ass' of Air Force One, observers sayChina's leaders have been accused of delivering a calculated diplomatic snub to Barack Obama after the US president was not provided with a staircase to leave his plane during his chaotic arrival in Hangzhou before the start of the G20. Chinese authorities have rolled out the red carpet for leaders including India’s prime minister, Narendra Modi, the Russian president, Vladimir Putin, the South Korean president, Park Geun-hye, Brazil's president, Michel Temer, and the British prime minister, Theresa...