One thing I noticed that maybe gives some credence to the thinking in this article. The President did't appear to take his dogs to Camp David this weekend.
I know, petty observation, but they showed both he and Laura getting off the copter and walking across the lawn -- she one direction and he to the crowd. No dogs... I always see him carrying the dogs off the copter, so I thought (at the time) this wasn't a weekend for play... he was thinking.
Very short weekend. Went up Sat morning, back Sunday afternoon.