My question is why President Obama chose the lack of a plan after intervening in Libya . . .

. . . as his worst mistake. We so often hear he's playing chess while everyone else is playing checkers. What's his strategy here? Admitting this will have an effect on his legacy. Admitting this could be used against Hillary since it is known she convinced him, against many other advisors, to intervene. Does he hope his taking ultimate responsibility, as he must, will absolve her somehow? There are so many other issues, as stated above, that he could have pointed to. I didn't hear the interview and wonder did he offer this bit of soul baring or was he asked? Just really curious.