In December last year the Coalition government pulled the pin on the Interislander ferry replacement project, saying it was time to get real about what had been a significant budget blowout from $700m to about $3b. More than 10 months on, Cabinet has yet to discuss what will replace the project due to coalition disagreement about the best solution, as the ageing current fleet faces maintenance difficulties. In this week's Focus on Politics, Political Editor Jo Moir examines the government's rocky relationship with its Cook Strait crossing.

Go to this episode on rnz.co.nz for more details