 Well, they see Biden's own performance and they're hearing conversations and seeing polls in their own states and in their own races, polls nationwide and in the crucial states that decide our elections. They're seeing these polls say the two thirds of Democrats want Biden to step aside. Now, these are people who may still vote for him in November if he's the candidate, but they think he should give way to a stronger candidate. NPR's Ron Elving. This is NPR News.