By Amy Walter of the Cook Political Report
Not a day goes by when I don’t get asked who I think the Democratic nominee will be in 2020. My answer of “I don’t have any idea,” is not always satisfying. But, it’s the only honest answer.
There are simply too many unpredictable factors involved in the nomination process this time around to feel confident about any predictions this far out from the nomination.
Here are five of those unpredictable factors:
