Not only that, but look at the remaining schedule. Braves have more on the road than at home. Nats have more at home than on the road with 7 more on this trip. After that, they'll have 27 remaining at home and only 17 on the road. That SHOULD be a big advantage for the Nats.
Who knows if it is, Nats seem to have more tenacity on the road than at home these days.
Any way, I don't think the Braves will overtake the Nats, and I hope they don't, but I can't say I'd be surprised if they did either. They're a good team and only a few games back.