"It is not fully appreciated, this doesn't end on Oct. 31. Some people I know have become weary of Brexit and may take the view that this should end on Oct. 31, with either a deal or no-deal," Varadkar told journalists in Hillsborough Castle near Belfast.

"If there is no deal, then at a certain point we will have to begin negotiations again, and the first items on the agenda will be citizens' rights, the financial settlement and the solution to the Irish border."

"No deal doesn't kill the backstop."