'Hitting Back'

In response to questions of when he was going to 'hit back' at the lies of McPain, Obama had this to say:

"Here’s what I can guarantee you: that we are going to be hitting back hard – we have been hitting back hard – but we’re hitting back on the issues that matter to families.
I’m not going to start making up lies about John McCain."

He doesn't have to make up lies about McPain like McPain has to make up lies about Obama ... McPain lies about his lies to cover his lies and everybody knows it (especially now) so there is no need to add more - he does a better job of lying about himself than Obama could ever do making do lies about him.