The former UK Minister Johnny Mercer served under five Prime Ministers during nine years in Parliament. In his new political memoir called 'No Way To Run A Country' the former Veterans Minister shines a light on the twists and turns of his time in Westminster - a place which he says ''definitely does something to your soul''. Before becoming an MP, Johnny Mercer served three tours of Afghanistan and spent most of his political career trying to improve the lives of veterans. For the latest news download the BBC News app or visit BBC.com/news