SNP's Black and Dowden clash over Brexit claims
The deputy SNP Westminster leader said in 2016, Oliver Dowden MP told his constituents of his "duty" to furnish them with Brexit facts.
But Mhairi Back said on Wednesday Brexit Britain faced higher food prices, a lack of workers and a decline in living standards.
The deputy PM said the SNP wanted to "undo Brexit," but should concentrate on the "mess they've left Scotland in."