A far right activist who claims to be one of the organisers of a Ukip rally and who attended a top level meeting with the party’s leader Gerard Batten has a conviction for attempted kidnap, The Sunday Telegraph can reveal.

Daniel Thomas, 29, has been instrumental in promoting “The Brexit Betrayal” march, a London demonstration in which the newly appointed Ukip advisor ‘Tommy Robinson’ is expected to speak on December 9.

In a picture tweeted by Gerard Batten on Friday, Thomas is photographed sat next to Robinson, the founder of the English Defence League, alongside the party leader.

Mr Batten tweeted: “Spent the afternoon planning Brexit Betrayal - Brexit Must Mean Exit March & Rally,” adding that the event was a “leaver family day out”.

It can be revealed Thomas, a father of four, was jailed two years ago for the attempted armed kidnapping of a man in Hampshire.