1) I didn't say that everyone at MSNBC constantly defends Obama. I am well aware -- as Kristen Welker so notably put it -- that "not everyone on MSNBC does that 24 hours a day." The indisputable point is that many, many people calling themselves journalists on MSNBC do exactly that.
2) My main point was to note the stunning irony of being told on MSNBC -- of all places -- that a journalist "crosses the line" by expressing opinions and having political agendas. The last outlet that ought to be trumpeting that obsolete myth is MSNBC. This is, after all, a network that employs a veritable army of former Obama and DNC aides as hosts and "analysts," along with dozens of people whose entire worldview is shaped by devotion to the President and his Party's interests.
3) It's particularly ironic to hear that (a) a journalist is doing something improper ("crossing the line") by defending his source, while (b) it's perfectly proper for journalists to devote their entire careers to defending and venerating the most powerful political official in the nation. Doesn't that reverse the formulation rather radically?