Former Vice President Joe Biden has been one of the most active Democratic surrogates in 2017 and 2018, and his advisers are hard at work on plans for a busy campaign schedule this fall that could have him appearing at as many as a dozen events each week.
At the same time, he and a trusted inner circle have quietly been engaging a wider network of political allies to sketch the outlines of what a Biden 2020 candidacy might look like should he decide to run, multiple sources who have participated in the discussions tell NBC News.