The "even" in "even Barack Obama" isn't about him being super far left, then "even" is about the fact a former president has to be the one telling people their

The "even" in "even Barack Obama" isn't about him being super far left, then "even" is about the fact a former president has to be the one telling people their tactics aren't working. And then they go on to ignore his advice because he is insufficiently left. Which ironically proves how prescient his advice is.