Christopher Luxon will call referendum on MMP voting system if elected back into power

The Prime Minister says he will call a referendum on the country's MMP voting system if he's back in power after the November election.Christopher Luxon made the promise alongside a commitment to hold a referendum on extending the parliamentary term from three years to four.He told Newstalk ZB on Thursday morning a referendum on MMP is "something we should consider" and he wants to see it happen next year."I actually think it's quite right to check-in constitutionally and say, is this the system New Zealanders still want...is it still where you want to be?"Luxon said the easiest way to avoid coalitions with parties that don't always have the same values or policies is to vote National - taking a dig at other parties in the process."I feel like I've got responsible sensible ministers delivering...I've got amazing people doing incredible work who take it very seriously."The question I keep saying is, I don't need some yahoo or numpty from some other party around that (Cabinet) table," he said."I can do a lot more to get the centre-right agenda, centre being the operative word, done and out the door, so think about your vote on November 7 - it's really important."More to come...