NEW : Reid and Biden are main negotiators now , sources on both sides say . `` There 's still significant distance between the Obama sides , '' McConnell says . Obama calls on GOP to cut a deal on taxes ; Americans argue Obama is overspending .
NEW : McConnell and Biden are main negotiators now , sources on both sides say . `` There 's still significant distance between the two sides , '' Reid says . Obama calls on GOP to cut a deal on taxes ; Republicans argue Obama is overspending .