Politicians from all parties were greeted with a rousing powhiri as they were welcomed onto Waitangi's Upper Marae this morning.

For the first time all MPs, including Jacinda Ardern and National's Simon Bridges, arrived in one group.

Last year, Prime Minister Jacinda Ardern told those gathered to hold her and the Government to account.

Today she has acknowledged there’s still more work to do.

She says she doubts anyone expected the Government to turn around decades of issues in 12 months.

But she says they have made progress, as Maori unemployment, and prison numbers, and young people not in education, jobs or training - have all come down.

And New Zealand First MP and Cabinet Minister Tracey Martin says she personally witnessed a National Party MP instructing online "trolls" to attack former Labour leader Andrew Little.