5月，最接近预测大选结果的英国民调公司YouGov在他们对1，875名选民进行的最后一轮选前民调中加上了这样一个问题 ： “ 在谈判英国脱离欧盟的过程中，你认为我们的政府是否应该为欧盟民众提供来英国旅游、工作、学习或在英国退休的权利，来换取欧盟国家赋予英国民众同样的权利？
In May, YouGov, the British polling company that came closest to predicting the election result, added to their final pre-election poll of 1,875 voters the following question: “In negotiating Britain’s departure from the European Union, do you think our government should offer EU citizens the right to travel, work, study, or retire in Britain, in exchange for EU countries giving British citizens the same rights?”