As I am sure many of you know David Plouffe was Obama's campaign manager in 2008, so he might be a little oversensitive here.Sanders closing with Cornel West and embracing idea of Buyer's Remorse with @POTUS. Be honest then Senator - run firmly against Obama record— David Plouffe (@davidplouffe) January 31, 2016
However I must add that Sanders has made a couple of remarks about the President, including talk about doing away with Obamacare and replacing it with some version of single payer, that have caused me some concern.
After all running against the record of President Obama is the job of the Republican candidates, not the Democratic candidates.
And I will say this as well, if this race on the Left evolves into a contest between a candidate who embraces and promises to protect the gains made by this President, and a candidate who is underwhelmed and wants to upend the progress made by this President, I think that second candidate is going to find themselves facing quite a lot of backlash.