Bush, Kerry Clash on State of Economy AKRON, Ohio - President Bush and John Kerry battled over the economy and jobs in a small corner of the campaign's most fiercely contested state Saturday as polls showed a post-convention surge for the Republican in the White House.    With little more than eight weeks remaining to Election Day, a Newsweek survey gave the president a lead of 52-41 over Kerry, with independent Ralph Nader at 3 percent...