President Obama's senior adviser, Dan Pfieffer, told "Face the Nation" the White House had only heard of the IRS probe this month -- but that has done nothing to quite conservative critics. Sharyl ... more 
President Obama's senior adviser, Dan Pfieffer, told "Face the Nation" the White House had only heard of the IRS probe this month -- but that has done nothing to quite conservative critics. Sharyl Attkisson reports. less 
1 / 20
CBSTV Videos
Sun, May 19, 2013 8:37 PM EDT