WITNEY, ENGLAND - OCTOBER 21: Liberal democrat candidate Liz Leffman (L) reacts as she stands besides Conservative candidate, Robert Court, at the Windrush Leisure Centre on October 21, 2016 in Witney, England. The by-election in Witney, Oxfordshire was prompted by the resignation of former Prime Minister David Cameron, who stood down as an MP shortly after leaving Downing Street. (Photo by Matt Cardy/Getty Images)
