Poll: Is Winston Peters holding the country hostage?

WELLINGTON, NEW ZEALAND - SEPTEMBER 27:  NZ First leader Winston Peters speaks during a press conference at the Beehive Theatrette on September 27, 2017 in Wellington, New Zealand. With results too close to call, no outright winner between National's Bill English and Labour's Jacinda Ardern has been able to be announced following the general election on Saturday 23 September.  (Photo by Hagen Hopkins/Getty Images)

It's been more than 3 weeks since polls closed and Winston Peters is still negotiating. Is he:

a) Holding the country hostage? 

b) Doing what's required under MMP?