UPDATED: 11.05AM A political analyst is predicting a challenge for the Labour Party leadership in six month if Andrew Little can't turn around his and the Labour Party's popularity.

The latest One News Colmar Brunton Poll has Labour dropping to 28 per cent support, a four point drop from February.

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Dr Bryce Edwards of Otago University said for the moment there doesn't seem to be a mood in the caucus for a leadership change.

"No one really wants to roll Andrew Little, so he is safe for the moment. But this will just put the matter into the minds of those Labour MPs about whether Andrew Little can turn this around and he's probably got six months.

"If not, I think later in this year we'll start seeing the hands going up from some other MPs or some other MPs will be pushed to replace Little".

LISTEN ABOVE: Andrew Little talks to Mike Hosking

The Labour leader told Mike Hosking the fall was expected and his leadership's not in trouble:

"It's disappointing, obviously it is, but it was predictable because I had a particularly bad come of weeks a few weeks ago. We thought that would show up at some point, but you take the lesson, you knuckle down and you get on with the hard work."

Little's accepting he and his party have work to do. 

"And I think it is about accepting that we still have a lot of work to do to earn the respect of the electorate".

Little's also dropped to third on the preferred Prime Minister list behind John Key and Winston Peters.

"Well that's what the poll says. In the end, I understand what my job is and it is to make sure we are a party that's focused on the issues."

He said they've been more reactive than focusing on sharing their main goals with the public:

"There's gotta be an improvement, absolutely, yeah. I guess when you're the biggest party in opposition it's easy to get drawn into every issue going. We can't be barking at every passing car and I think we've fallen into a bit of that trap."

The Labour leader said they'll need to be back in the mid-thirties to be competitive.