"We believe the party should take swift and immediate disciplinary action against Mr Bennett."We as candidates and many members who support us are deeply considering whether UKIP really represents us."
"are contrary to UKIP's fair and ethical stance on immigration", and he had "degraded our ability to campaign and connect with voters by saying it is pointless to knock on doors".
"Mr Bennett is not fit to be a lead candidate in a grassroots party where engaging the public is crucial to our success,"The formal complaint has been signed with the names of 16 Welsh candidates, which includes hopefuls for the assembly and police and crime commissioner elections.
I suppose the seriousness of the threat depends on how high up (and likely to be elected) on the regional list the candidates are