Given the loss of the AV referendum on the voting system and the deadlock over House of Lords reform, this may be unsurprising. (theconversation.com)
They reckoned that their best hope of holding their seats was for the coming referendum on the voting system to produce a majority for the Alternative Vote (AV). (yougov.co.uk)
In 2011, New Zealand held a nonbinding referendum on its voting system, and voters opted to stay with MMP by a wide margin. (vox.com)