Labour Still For 'Working People' Labour leader Ed Miliband has moved to win back the working classes, following a poor performance in the Rochester and Strood by-election and a damaging "snobbish" tweet from MP Emily Thornberry. Mrs Thornberry had tweeted a photo of a house flying three England flags with a white van parked outside, along with the caption "Image from Rochester." The tweet prompted outrage from those who accused Labour of being snobs and sneering at the working classes. Just hours later, Ms Thornberry apologised for any offence caused and resigned as shadow attorney general. Writing in the Daily Mirror, Mr Miliband insisted Labour was "still the party of working people." Video: Ed Miliband Angered By MP's Tweet Farage: More MPs Plotting Defection To UKIP He said: "We will always remain the party of working people. That is why I was furious at the tweet by Emily Thornberry which conveyed a sense of disrespect about a family in Rochester. Respect is the basic rule of politics and there is nothing unusual or odd about having England flags in your window. Video: Labour 'Sneers' At Patriotic Brits His words come as Labour also tried to move the spotlight onto other issues, with Shadow Chancellor Ed Balls set to call for a billion pounds in bank fines to be used to boost the NHS. Mr Balls will speak at Labour's East of England regional conference in Ipswich today and will say: "This latest banking scandal shows why we still need big reform and cultural change in our banks. But the fines levied on banks for foreign exchange manipulation should now be used for a wider good. And I believe an immediate boost to our National Health Service, which is going backwards under the Tories, must be a priority. Video: Labour MP Quits Over Tweet Because under David Cameron it's getting harder to see a GP, A&E is in crisis and waiting lists are going up again. Three billion pounds has been wasted on a top-down re-organisation while nurses and frontline staff have been lost. And cancer treatment targets have now been missed for three quarters in a row. Some of the remaining funds from the fines should go to boosting the work of the Serious Fraud Office so that it has the resources it needs to pursue individuals involved in this scandal and for future investigations, Mr Balls will say. The Financial Conduct Authority (FCA) has demanded the fines from five banks for manipulating currency exchanges.