Polls have closed in the Clacton by-election in England with Nigel Farage hoping to retain his seat.
Polling stations in the Essex resort shut at 10pm having been open since 7am.
The result is likely to be announced on Friday morning.
The Reform UK leader quit as an MP to trigger the by-election in protest at media and parliamentary scrutiny of donations from his backers.
Mr Farage said it was a chance to “stick two fingers up to the establishment”.
The main Westminster parties are boycotting the by-election, dismissing it as a stunt by the Reform UK leader, but a record 34 candidates are standing.
Mr Farage wanted it to be a “people versus the establishment” showdown but, rather than Labour and Tory rivals, he is facing opponents including satirical candidate Count Binface, actor-turned-politician Laurence Fox, three from the Official Monster Raving Loony Party and an array of independents.
Photographers and TV cameras covering the count have been advised by officials they will need a wide-angle lens to fit all the candidates into a single shot.
Before quitting Westminster, Mr Farage was being investigated by the parliamentary standards commissioner Daniel Greenberg over a £5 million gift from cryptocurrency tycoon Christopher Harborne, which he received before taking his seat in the Commons.
Under Commons rules, new MPs are required to register any gifts worth more than £300 they received in the previous 12 months, except where the gift “could not be reasonably thought by others” to relate to their political activities.
That investigation was paused when Mr Farage resigned his seat but will resume if he wins the by-election – as bookmakers have made him the firm favourite to do.
Mr Farage could also face an investigation over support provided by George Cottrell, a long-term ally.
Mr Cottrell reportedly recruited and paid three staff to work on Mr Farage’s social media before the general election, and has continued to allow him to use a five-storey, Georgian property he rented near Buckingham Palace.
The main Westminster parties refused to take part in this contest but could stand if the outcome of the standards investigation into Mr Farage results in another by-election.
If he is found to have broken the rules and a suspension of more than 10 days is imposed, it could trigger a recall petition and the prospect of Mr Farage losing his seat, forcing a second contest.
In the 2024 general election, Mr Farage won Clacton with 46.2% of the vote and a majority of 8,405 over his Conservative rival.
A Conservative Party spokesman said: “Nigel Farage called this fake by-election in a desperate attempt to draw a line under the questions surrounding his fishy £5 million donation. Whatever the outcome on Friday, this stunt has not done that.”