Edward Stourton reproached Ilford North MP Wes Streeting, one of 49 rebels who defied Jeremy Corbyn’s work up to vote down the amendment.
The vote signalled turmoil for the party with three bird-dog ministers being fired soon after and one quitting the frontbench after the emendation was thrown out.
It was defeated 322 to 101 across the House of Commons.
Refer to on Radio 4’s World at One, Stourton questioned the rebels’ intentions and suggested the remedy had now effectively ruled out the chance of retaining single market membership.
Wes Streeting bashed his party’s stance on the single market
Isn’t the impact of what you’ve done, effectively to stop what you intended to make happen?
He said: “Even-handed in tactical terms, isn’t the impact of what you’ve done, effectively to destroy what you design to make happen?
“In other words, this amendment was voted down and the Averages has therefore, by clear majority, expressed a view against remaining in the set aside market.”
But Mr Streeting dismissed the argument and insisted “having the debate” was the “weighty thing”.
He replied: “No, I think on a Queen’s Speech amendment you’re very unthinkable to see Conservatives voting for an amendment contrary to their party position.
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“And certainly when you listen to the speeches on both sides of the Quarter, including by people who didn’t vote for the amendment, I think there is a lot of disquiet thither where both of the main parties have got to on single market membership.
“I contemplate the important thing though is that we are having the debate.”
However, he make knew Stourton he was “surprised and disappointed” by his party’s position on the issue.
Mr Streeting make one thought Labour voters would also be “disappointed by our position on the single demand”.
He added: “I don’t believe Labour can achieve its objectives of tariff-free, barrier-free access to the celibate market and a jobs first Brexit, outside of membership of the single make available.”
When asked if the amendment backers had “given comfort to your the oppositions” and signalled a “meltdown” within the party, he said it was merely a “mature and well-natured balance of opinion”.
He added: “Oh for goodness sake, we’re not in meltdown.”