Tusk said to have told UK that deadline for Nov. summit is Wednesday night

The European Council President Donald Tusk, as quoted by The Sun's political editor in a tweet, was said to have told No.10 that a deadline for a November summit is this Wednesday night. 

The tweet reads:

Tusk has told No10 that a deadline for a November summit is this Wednesday night. But it appears the Govt is beginning to give up hope for one. Whitehall source: "I wouldn't get your hopes up".