Leader of the Liberal Democrats, Tim Farron (R) and attends a campaign visit with the party's candidate for the Twickenham constituency, Vince Cable, in Twickenham, south-west London on June 7, 2017, on the eve of the general election.
Britain on Wednesday headed into the final day of campaigning for a general election darkened and dominated by jihadist attacks in two cities, leaving forecasters struggling to predict an outcome on polling day. / AFP PHOTO / NIKLAS HALLE'N        (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)