Pollies: National's Mark Mitchell and Labour's Ginny Andersen on the possibility of a mega-tunnel under Wellington

Labour and National are clashing over a potential mega-tunnel underneath Wellington.  The government's looking at a tunnel connecting The Terrace and Kilbirnie, a distance of around 4km.  It has been proposed to bring down travel times and reduce congestion on state highways.  National's Mark Mitchell told Mike Hosking that they're going through a business case and analysis.  But Labour's Ginny Andersen, based in Lower Hutt, is sceptical about how it'll happen.  LISTEN ABOVE See omnystudio.com/listener for privacy information.