The verdict is in for Simon Bridges and it doesn't get much worse.

Under his leadership National is in a tailspin, with the party's popularity nosediving to a record low in our latest Newshub Reid-Research poll.

Critically for Bridges, National's crashed into the dreaded 30s, which many of his MPs see as the trigger point for a leadership coup.

The poll shows the country doesn't like Bridges and he's taking the National Party down with him.