Which London train lines are run by TfL and Great British Railways as another becomes publicly-owned

On Thursday, January 29, the Department for Transport announced that London Northwestern Railway and West Midlands Railway will be placed into public ownership. London Northwestern Railway, which operates services from Euston to Birmingham and Liverpool, will join several rail operators in the capital which have already been nationalised. All London Underground, Overground, Elizabeth line, DLR and tram routes are owned by TfL. ‌While this government nationalisation process continues, TfL wants to take control of some National Rail routes owned by companies that are being transferred into public ownership. A business case provided by TfL laying out its plans suggests integrating these routes into the London Overground.