Jonathan Chait, the reading of whom is often recommended here, has a new book coming out about Barack Obama. As you can see in this excerpt, it basically argues that he was a great president and that his "legacy" cannot be expunged as easily as his opponents probably wish. You can order the book from this link.
Chait is making the rounds promoting the book — he'll be on with Trevor Noah tomorrow night — and I suspect we'll see a lot of folks in the coming weeks saying how good Obama has been for America. Which means a lot of deranged tweets from you-know-who trying to demean the man against whom he'll be judged.