President Bush took his case for war with Iraq to the heartlands yesterday, telling rallies in Kentucky and Indiana that “history has called us into action” to topple the Iraqi leader. He plans to call the leaders of Russia, France and China today. Those nations all hold the power of veto on the U.N. Security Council. He’s scheduled to meet with British Prime Minister Tony Blair at Camp David Saturday. Blair told the BBC Britain is willing to pay a “blood price” in its special relationship with the U.S. and will be there when the shooting starts. Bush is also scheduled to address the U.N. General Assembly on September 12.