John Kerry, the Democratic presidential candidate, on Friday began a three-day bus tour of small-town America to mark the Independence Day weekend, highlighting his economic differences with President George W. Bush while dodging questions about who will be his vice-presidential choice. Beginning in tiny Cloquet, Minnesota, Mr Kerry aimed to appeal to rural voters by criticising the administration's record on job creation, trade, budget cuts and healthcare. "They say this is the best we can do," Mr Kerry said. "Don't tell us losing 1,300 dairy farms in Minnesota is the best we can do. In 2004, we have to bring...