Will Bernie Sanders' heart attack deter his supporters?

A second whistleblower has come forward. What does this mean for President Trump?

Well it means that Republicans are going to have an increasingly hard time dismissing all of this as secondhand hearsay. It also means that there are probably a lot more career public servants who are alarmed by the president's phone calls with foreign leaders and we should expect more to come forward.

Bernie Sanders had a heart attack on the campaign trail. Is this going to deter his supporters?

Well nothing can deter hardcore Bernie Sanders supporters. They're with him no matter what. But I do think it makes it more difficult for him to expand his numbers amid concerns about his age and health.

The North Koreans have canceled more talks with the United States about denuclearization. Is this going to go forward at all?

I don't think that it will. I think the North Koreans have indicated they have no interest in denuclearization and talks with the Trump administration. So, one of the big Trump goals is probably not going to be fulfilled. I think that may be true of China and trade as well.