To counter the loss of further votes to UKIP, the governing Conservatives promised a referendum on the UK's continued membership of the EU. Rather than taking part in the official Vote Leave campaign, to which various Eurosceptic Conservative and Labour politicians were linked, UKIP affiliated itself with the Leave.EU campaign group. Farage gained regular press coverage during the campaign, in which Leave.EU emphasised what it characterised as the negative impact of immigration on local communities and public services. The June 2016 referendum produced a 51.89% majority in favour of leaving the EU: the accomplishment of UKIP's "raison d'être" raised questions about the party's future. The loss of its MEPs would result in the loss of its primary institutional representation and a key source of its funding.