Theresa May sticks by Chequers plan for Brexit despite EU warning it 'will not work'

Theresa May is defiantly sticking by her Chequers strategy for Brexit, despite the EU insisting a key element of her plan "will not work" and issuing a four-week deadline to agree a deal.The prime minister was dealt a large setback on Thursday after she failed to attract EU backing for her Brexit plan during an informal gathering of the bloc's leaders in Salzburg, Austria.At the end of the summit, European Council president Donald Tusk admitted there were "positive elements" to Mrs May's Chequer