A four-hour stop in New Orleans, on his way to a $3 million fundraiser. Snubbing the Dalai Lama. Signing off on a secret deal with drug makers. Freezing out a TV network. Doing more fundraisers than the last president. More golf, too. President Barack Obama has done all of those things — and more.What’s remarkable is what hasn’t happened. These episodes haven’t become metaphors for Obama’s personal and political character — or consuming controversies that sidetracked the rest of his agenda. It’s a sign that the media’s echo chamber can be a funny thing, prone to the vagaries of news...