A seventh candidate has entered the race to be the next MP for North East Cambridgeshire following the closure of nominations. Local councillor David Patrick has declared he will be standing as an independent in the General Election on July 4. His entry into the fray is not the only change following Friday’s deadline for nominations. Michael Roberts, who was previously said to be standing for the Social Democratic Party is no longer a candidate. However, Clayton Payne has also joined the line-up of would-be MPs and is standing for the Workers Party of Britain – the party led by George Galloway…