Reform UK leader Nigel Farage has said the party now has more than 200,000 members and is aiming to overtake the Labour Party's total of 309,000.
Referring to last year's row with new Conservative leader Kemi Badenoch, when she doubted Reform's total membership, he said the party "got people to come in and check and look at the back end, and it's all absolutely legit".
With the party's live membership ticker displayed on a screen behind him, he said it was on course to become "the biggest political party in this country".
Switching his focus to their political opponents, he declared that "when we overtake [the Labour Party], we will be the biggest political party in this country".
In another sign of its growing threat to the main parties, last week, Reform UK came top in a poll of people who voted Conservative at the last election.
