Thanks for the proof that you are not intelligent enough to read and comprehend.
As the article mentioned, previously incumbent Presidents have not campaigned during the opponents convention. Obama is doing so because he is scared of what will happen if he isn't the main talking point of his media.
This 'tiny little op-ed piece' doesn't prove anything... it is the fact that Obama is going to be campaigning during the Rep conventions that shows he is scared.
No, it shows that he is industrious.
You starting this thread shows that you are scared.