[img]https://e3.365dm.com/18/09/512x512/skynews-theresa-may-conservative-conference_4436697.jpg" alt="Conservative conference: The key questions for Theresa May's party" class="sdc-article-strapline__image">
Conservative conference: The key questions for Theresa May's party
Sky News takes a look at the key questions facing Theresa May and her party
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Brexit: Chequers proposal explained
Mr Johnson said Mrs May's proposal that Britain and the EU should collect each other's tariffs was "entirely preposterous"."The idea that we could ask customs officers in Dubrovnik and Santander to charge British-only tariffs is deranged, and nobody thinks it can work," he added.Mr Johnson's remarks are the latest in a series of interventions on Brexit,
including an interview with Sky News, that have fuelled speculation he is preparing to challenge Mrs May's leadership.
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