English Democrats candidate Matt O'Connor says he has halted his campaign to be London mayor.
Mr O'Connor told BBC London he fell out with the party leadership over campaign funding and tactics.
But his name will still appear on ballot papers as they have been printed - and many postal votes have already been cast in the 1 May contest.
Mr O'Connor is best known as the founder and spokesman for the campaigning group Fathers 4 Justice.
Explaining his decision to stop campaigning with less than a week to go before polling day, Mr O'Connor said he had been unhappy with the lack of coverage he was getting from the media.
'Frustrated'
He told presenter Vanessa Feltz: "We've just had St George's Day and you would just think the one thing a party about England would own would be St George's Day.
With the benefit of hindsight I probably should not have stood for them .
BBC NEWS | Politics | O'Connor pulls out of mayor race
It is too late now KENTISHMAN (which is the name he uses on political forums) you have let down your party big time.
Is this the end of The English Democrats..........?