National's Matt Doocey and Labour's Dan Rosewarne joined John MacDonald for Politics Friday this week.
Doocey rejected claims the Woodend Bypass has been put on the back burner, while Rosewarne accused National of over-promising and under-budgeting, and said Labour would prioritise its construction.
However, when repeatedly asked whether Labour would deliver it sooner than National, Rosewarne couldn't provide a clear explanation of how that would be achieved.
They also covered some of the other biggest stories from the week, from David Seymours idea to ban smartphones for under-sixteens, to the Green's new policy to make union membership opt out rather than opt in.
LISTEN ABOVE

John MacDonald: Bird-flipping ECan needs its wings clipped
04:54

David Seymour on his smart phone ban idea, Paul Henry's candidacy, and school lunches
24:41

John MacDonald: Banning smartphones? Good luck with that one
04:16