With an election looming, what is the route to a Final Say referendum now?

If Boris Johnson fails to win a thumping majority, the prospect of a second referendum is very much alive, writes Lizzy Buchan

Second-referendum supporters at the People's Vote rally in London last month (Getty)

After several failed attempts, Boris Johnson appears to have finally secured his general election. Focus in Westminster is already shifting away from the prime minister’s Brexit deal, as the parties tool up for a gruelling prospect of a winter election campaign.

But Brexit still looms large over proceedings – and the prospect of a Final Say referendum could be boosted by the coming poll.

This parliament has repeatedly rejected attempts to attach a referendum to various bits of legislation, and despite shifting allegiances across all the parties, there has never been a clear majority for it.