Deputy Prime Minister Nick Clegg used a speech on Britain and Europe to say pro-Europeans need to take responsibility for the "negative reaction to all things continental".
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Baroness Warsi had previously warned the 'divisive and xenophobic' EU referendum had spurred a surge in racist abuse.
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As Labour's turmoil continues and the Tories deal with the fallout of Brexit, the Lib Dems think they have something to offer voters.