David Mundell, the Scottish minister, has claimed that the cabinet will test the controversial customs union proposals "to destruction".
The BBC interviewer questioned why the Government minister had made such a doom-laden description for a process that will determine Brexit.
Prime Minister Theresa May's special Brexit sub-committee will meet today in an attempt to resolve the deadlock on the customs union.
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The cabinet has been in deadlock over the proposals, with Boris Johnson calling one of them - the customs partnership - a "crazy" option.
The two proposals are the maximum facilitation solution, which Brexiteers largely support, and the customs partnership, which is thought to be preferred by Mrs May.
BBC reporter Martha Kearney challenged Mr Mundell on the state of the divided cabinet ahead of a critical European Council summit in just six weeks.
She asked: "This is now all going back to the drawing board on customs. Isn’t this a chaotic situation? The cabinet can’t even agree on UK policy."
Mr Mundell said: "I think it’s right that the cabinet does a full detailed analysis of this issue."
When Kearney quizzed the Scottish minister on why this has taken so long to agree on, he responded: "The EU set the timescale to discuss these issues.
"It’s right we are focusing on it now. It is right that we ensure we get it right, that we test these proposals to destruction."