Labour's National Executive Committee said the decision was made due to Corbyn claiming that antisemitism in the party under his leadership was overstated by the media.

The Win Islington North group, composed of over 100 local Labour Party members, criticised Corbyn's campaign as an independent candidate and pledged support for Nargund.

[21] Praful Nargund, the Labour candidate, kept a low profile during the campaign and restricted his media interviews to a small handful.

[23][24] On 28 June, leading members of the Islington North Labour Party signed a letter announcing they were resigning, or willing to be expelled, to campaign for Jeremy Corbyn, stating they were "denied the right to choose our own candidate".

[25] Because of the unusual nature of the Islington North election, in mid-June data journalist Ell Folan attempted to raise £7000 via crowdfunding to pay for a local poll of voting intentions.

After the results were announced and Corbyn was declared winner, he gave a victory speech saying the constituency had voted for a "kinder, gentler, more inclusive politics".