A polls analyst from Newspoll is expecting tomorrow's federal...

A polls analyst from Newspoll is expecting tomorrow's federal election to be an extremely close contest and says it could be a week before a definitive result emerges.

Martin O'Shanessy says that, based on a poll to be published tomorrow, the result is certain to be a cliffhanger.

"I think we might find it very very close in those key marginal seats that we have to see and there may be a lot of recounts and protests around the edges," he said.

Today's polls all show Labor in front, but by widely differing margins.

An AC Nielsen poll gives Labor a massive 14-point lead, after preferences, but a Galaxy poll has the ALP leading by just four points - the best result for the Coalition this year.

Deputy Prime Minister Mark Vaile says he believes today's polls are a clear indication the election will be a close contest.

Mr Vaile says he hopes there is a clear result tomorrow night but it may not happen that way.

"There may be a number of seats that take a number of days to resolve," he said.

"That has happened in the past and if it is something that is happening very, very, tightly, [if] it could tip one way or the other and is relying on a small number of seats, it could take a number of days."

http://www.abc.net.au/news/stories/2007/11/23/2099148.htm