China insists that the summit between Trump, Xi Jinping and Putin will follow a pre-prepared script.
China's plans for the summit raise doubts about the possibility of the meeting.
The US opposes China's demand for a trilateral summit according to a pre-prepared scenario.
China is also reluctant to discuss nuclear arms control at the proposed meeting.
Disagreements between the parties cast doubt on the very possibility of holding a summit.
—. WSJ.