House Republicans try to block Obama’s rifle rule – House Republicans, accusing President Barack Obama of waging a war on gun owners, plan to cut off funding for an rule requiring firearms dealers in border states to report multiple sales of certain rifles.  The matter has become a flash point on both sides of the national gun control divide, elevating the debate over the Second Amendment in an election year in which the president is struggling to win again in pro-gun swing states such as New Mexico, Colorado, Nevada and Virginia.