A record single donation has shifted assumptions about the next election, writes John Rentoul T he latest quarterly declarations to the Electoral Commission of donations to political parties puts Reform UK ahead of the traditional parties . Indeed, the £10m that Reform received is more than the donations to the Conservatives (£5m), Labour (£3m) and the Liberal Democrats (£1m) put together. Almost all of that Reform figure is accounted for by a single donation of £9m from Christopher Harborne, a