BBC News with Marion Marshall

The governor of New York state Andrew Cuomo says tens of thousands of people affected by the huge storm last Monday could soon need housing because of an expected

cold spell

. The mayor of the New York city, Michael Bloomberg put the figure at 30,000 to 40,000, but said there would be a problem in finding empty

properties

. Speaking ahead of Tuesday's presidential election, Mr Bloomberg said some 143,000 voters in the city would be reassigned to different polling stations because of the storm. He promised to do all he could to help the electoral authorities.

We'll do anything we can to help the board of elections, the governor has tried the same thing, and this is a system that is not run by the state or by the city, they have real problems and we've got to make sure that everybody can vote. It's not gonna be easy, but we will both work hard on that.

President Obama and his Republican Challenger Mitt Romney are engaged in a further

hectic

burst of campaigning as time

runs out

for them to influence voters ahead of Tuesday's election. Opinion polls indicated that Mr Obama may be slightly ahead. Mark Mardell reports.

The New Hampshire rally featured two blasts from the past, the theme song of Bill Clinton's election rally and the man himself. And President Obama told them he was still a candidate who offered a change. Two national polls out today indicated both candidates are tied, a third shows Obama ahead by 1 point. But around 10 million Americans have already voted, Obama's team claimed he is winning in most of the eight vital swing states. They say in Florida, 44% of people have voted and he is ahead by 7 point. But Mitt Romney's rely on election day itself