Bolton's credibility will certainly be attacked. But it will very soon fade into the background as Biden and Trump slug it out.

The problem for Trump is - if you ask around, more than most people will agree that Trump would have asked Xi for help. He had already done something like that with Russia in an extremely public manner.

The moment swing voters believe that his "I willl challenge China" as a fake statement, the more he says it the more he will get hurt.

This is exactly the reason why Trump refused to hone in on China at the Tulsa rally. He was all over the place in his 90 minutes speech, because there was no space for him to work on China due to the revelation. Just two weeks ago, Bannon was saying its all about China. And we are hardly hearing about China from Trump camp. They will be desperately trying to get China back into the middle. That's why what Biden does becomes even more important.