UKIP leader Gerard Batten has survived a vote of no confidence held by the party’s National Executive Committee.
Mr Batten had been criticised by some in the party – including former leader Nigel Farage – for appointing far-right activist Tommy Robinson as an adviser.
UKIP said its ruling body had voted “overwhelmingly” against a motion of no confidence. However it said it did not endorse Mr Robinson’s appointment.
He was barred from membership “through his associations”, it added.
Former EDL leader Mr Robinson – real name Stephen Yaxley-Lennon – was jailed for 13 months in May for contempt of court, although his conviction was later quashed over procedural concerns. The case has since been referred to the attorney general.
It was his third spell in prison since January 2013, having served sentences for mortgage fraud and a passport offence.
However, after appointing Mr Robinson to advise on rape gangs and prison reform, Mr Batten said: “He’s a good person to have on side, a lot of people respect his stand on things and his courage.”
Mr Robinson is expected to feature in a Brexit march in London on 9 December. UKIP said it had not organised the event, although members were “free to attend”.