Yesterday’s and today’s press conferences by White House press secretary Jay Carney provide ammunition to the thesis proposed this week even by a few mainstream journalists. By Carney’s account, Obama knows little or nothing about several really awful things happening in his own administration. He is (as Carney claimed) deliberately kept in the dark by senior staff regarding matters you’d expect a president would really want to know about, such as a major scandal about to erupt regarding the IRS targeting Tea Party groups, which began just as his health care bill was running into difficulty. The long and the...