Obama pushes for McCain territory

Democrat Barack Obama is extending his campaign advertising into traditionally Republican territory, as polls there show him closing on rival John McCain.
Sen Obama is to run ads in Arizona, his rival's home state, as well as North Dakota and Georgia, with only days to go before the US presidential election.
Mr McCain, campaigning for a second day in the key swing state of Ohio, made a last-minute appeal for donations.
Mr Obama is holding events across the Midwest, starting in the state of Iowa.
He will make a brief stop in his home city of Chicago to see his two daughters on Halloween, aides said.
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Speaking at a rally in Des Moines, Iowa, Mr Obama warned that Mr McCain's campaign was likely to escalate into a final crescendo of attacks on him.
Voters will see "more of the slash-and-burn, say-anything, do-anything politics that's calculated to divide and distract, to tear us apart, rather than bring us together", he said.
His campaign plans to run two adverts in North Dakota and Georgia, both states which have usually voted Republican.
One seeks to link Sen McCain, 72, to President George W Bush, suggesting the Republican would continue the same economic policies.
The other relies on Mr Obama's message of "unity over division", highlighting his endorsement by such high-profile Republican figures as former Secretary of State Colin Powell.
McCain campaign manager Rick Davis dismissed the advance into Republican territory, saying he advised Mr Obama, 47, to focus his spending on states which Mr McCain intended to prise from him on 4 November.
Mr Davis also told reporters that the campaign was "jazzed up" about Mr McCain's prospects, saying that he was living up to his reputation as the underdog who fights back.