Advisers to the senator are telegraphing that Sanders is eying a 2020 run — and his network is already ready to go, with supporters convinced that he was the candidate who would have beaten President Trump in 2016.

“His people have never gone away,” said Democratic strategist Brad Bannon. “And he has a loyal core following out there that will be with him come hell or high water.”

Also working in Sanders’s favor, Bannon said, is the leftward shift of the Democratic Party.

“The Sanders wing is becoming the dominant wing of the party,” he said.

http://thehill.com/homenews/campaign/361607-how-dem-insiders-rank-the-2020-contenders