Hendon Labour Party has elected David Pinto-Duschinsky to stand against sitting MP Matthew Offord at the next general election.
Mr Pinto-Duschinsky, a member of the GMB trade union and an adviser to then chancellor Alistair Darling in the last Labour government, beat Mike Katz, who ran against Mr Offord at the last general election.
Mr Katz, who reduced Mr Offord’s majority at the last election, did not manage to convince the voters.
Responding to the result on Twitter Mr Katz said: “Life, and politics, can be rough sometimes - but there have been some lovely comments here tonight, so thx to everyone. You know who you are.”