Negotiations on a sweeping deficit-reduction deal collapsed in acrimony on Friday as House Speaker John Boehner pulled out of talks with President Barack Obama, dealing a blow to efforts to avert a looming debt default. With the deadline just 11 days away for raising the federal government's borrowing limit, a stern-faced Obama expressed deep frustration with Boehner for walking away and demanded that he and other congressional leaders meet him at the White House on Saturday. Boehner said he could not overcome disputes with Obama over taxes and entitlement spending and said he would now try to hammer out a deal with ... (full story)