The new study finds that most seats in England, Scotland and Wales now contain a majority of voters who want to stay in the EU.
In a new analysis study performed by
The Observer, over 100 Westminster constituencies which had voted to support the Leave campaign during the 2016 EU Referendum have now swapped over to support the Remain side instead.
Of the 632 seats in England, Scotland and Wales were examined for the study, which found that 112 had switched from Leave to Remain.
The new analysis suggests there are now 341 seats with majority Remain support, up from 229 seats at the referendum.
This would suggest that Remain would now have 53% of the vote, to Leave's 47%.
The report suggests that young voters and those from ethnic minorities have driven the switch to Remain.
On Saturday, Liberal Democrat leader Vince Cable spoke at a rally of People's Vote supporters in Bristol: "Whether someone voted to leave or stay in the EU in 2016, nearly everyone is disillusioned by the mess the Conservatives have made of Brexit.
"This research is yet more compelling evidence that the British people must be given the final say on any - or no - Brexit deal. The shallow argument against giving the people their say diminishes towards nothingness with every passing day."
