Earlier today, as I hadn't seen the tweets from Obama's camp saying he was shooting on August 4th of last year, I checked the pic's Exif data on Flickr—a great feature they include for photo wonks to see the aperture, shutter speed, etc. when they're checking out others' uploads. "Date taken: August 4, 2012." Okay, cool.
Later on, when people started throwing up a screen grab of some Reuters story saying that Obama went golfing that same day, I got rather pissed off. It's extremely easy to do a round of golf and a round of shooting in the same day with plenty of sunlight to spare.