Commenting, Welsh Conservative leader Andrew RT Davies said:
“Mark Drakeford has given Labour members a vote on more politicians, he should now do the right thing and give the Welsh people a vote in a referendum.
“It’s clear that a significant part of the Labour movement has serious concerns about these plans and the destruction of the localised link between voters and their elected representatives.
“If the Labour establishment really think this is good for Wales, then they should give the public a say.”