Rice faces Capitol Hill grilling

President Obama has declared a major disaster in Oklahoma, and is now sending federal help to the area devastated by a tornado. CBS News chief White House correspondent Major Garrett reports on the disaster response.

Oklahoma Gov. Mary Fallin discusses search and rescue efforts in the wake of the devastating tornado in Moore, Okla.

Gary Pruitt, CEO and president of the Associated Press, told "Face the Nation" that Justice Department investigators have gone too far and President Obama should step in and control them. Gayle King reports.

Senior White House adviser Dan Pfeiffer pushed back against Republicans' claims of a coverup in the IRS scandal. Charlie Rose reports.

President Obama gave the commencement address at the historically black Morehouse College in Atlanta.

CBS News political director John Dickerson discusses what to expect in this week's round of hearings concerning the IRS scandal and how the White House is responding to Republican critics.