The British Labour Party is having another leadership contest, just one year after current leader Jeremy Corbyn defeated three rivals, 59.5% of the vote. Corbyn’s opponents have rallied behind a single challenger, Owen Smith. Smith’s supporters claim that Labour cannot win an election under Corbyn while Corbyn’s supporters claim that Smith is a Trojan horse for a Tory-lite party establishment. As the campaign has unfolded, Corbyn has sought to reassure supporters that he has a credible electoral strategy while Smith has sought to persuade Labour voters that he is a strong advocate for the left. Who is right and what is going on? Let’s have a think.