Anglea Rayner said the Tory MP “endorsed conspiracy theories about the veracity of the disease” and made a “deeply dangerous claim” about official figures.
Campaigners warn that ending the Dubs Amendment will lead to a spike in trafficking.
“This Government should not be making families pay the price for their broken promises to support councils."
Even by his standards it was a busy day of offending people.
The country narrowly voted out in 2016, but has seen manufacturers jump ship to remain in EU markets.
Billionaire Lord Ashcroft last year gave £175,000 to the Tories and their London mayoral candidate.
Former Welsh Government minister Alun Davies allegedly consumed alcohol with Welsh Conservatives leader Paul Davies, chief whip Darren Millar and the party’s chief of staff Paul Smith in a Senedd tea room.
An early glance at how the UK's departure from the European Union has measured up to its promises.
“If he’s going to call it a stunt he (Mr Johnson) should probably come with me to a food distribution centre to see these families this morning and explain to them what is a lifeline to them is a stunt, because it certainly isn’t from their point of view."