Secretary of State Mike Pompeo said in early December that Washington would give Moscow 60 days to return to compliance before it gave formal notice of withdrawal, with actual withdrawal taking place six months later. The 60-day deadline expires on Saturday, and the administration is expected to say as early as Friday that efforts to work out a compliance deal have failed and that it would suspend its compliance with the treaty's terms.
"We will not reopen the Withdrawal Agreement. So it may be about semantics of what'reopening' means. If things go toward more declarations, assurances or statements -- we can do that. But if she really wants to reopen the whole thing, then it's a'no'," the diplomat, who is involved in the Brexit talks, said on condition of anonymity.