Understanding Congress' payroll tax cut fight

Speaker of the House Rep. John Boehner, R-Ohio, speaks to the media before a meeting with the conference committee on the payroll tax cut on Wednesday, Dec. 21, 2011 in Washington. From left, Rep. Dave Camp, R-Mich., House Majority Leader Rep. Eric Cantor, R-Va., Boehner, Rep. Renee Ellmers, R-N.C., and Rep. Fred Upton, R-Mich. (AP Photo/Evan Vucci)

December 22, 2011 7:15:19 AM PST
If President Barack Obama, the House and the Senate all want to extend a Social Security payroll tax cut and jobless benefits through next year, why are they fighting so bitterly over doing it?