CNN: Biden Drops 10 Points Since May in New CNN Poll

EXCERPT:

TAPPER: "Welcome to The Lead, I’m Jake Tapper. We begin with breaking news. Our very first look at our brand-new CNN poll, giving us insight into where the 2020 Democratic presidential hopefuls stand after the very first debates. Former Vice President Joe Biden is still in first place but he has plummeted 10 percentage points since May. The big story in this poll, Senator Kamala Harris has shot up to second place after her widely-praised debate performance. Senator Elizabeth Warren has also gone up significantly and is in third place, within the margin of error with Harris. Senator Bernie Sanders rounding out the top four, also going down. CNN's David Chalian is at the magic wall, and David, wow, the debates obviously had a huge impact on this very fluid race."