"The one simple lesson to draw from President Obama's legacy: do not start off with a compromise," Manning wrote in an op-ed in The Guardian. "They won't meet you in the middle. Instead, what we need is an unapologetic progressive leader."
The column went on to say, "Barack Obama left behind hints of a progressive legacy. Unfortunately, despite his faith in our system and his positive track record on many issues over the last eight years, there have been very few permanent accomplishments."