Frack these arse holes with the Os shirt and Nats hat
There will be a lot more Orioles fans walking out with Nationals caps tonight: Script hat from Exxon-Mobil),
to first 30,000 attendees, center field gate
This is the only promotion for the entire season that is offered to that many people. I think it's a calculated move, recognizing that the Nationals are now the NL team supported by still-loyal O's fans. DC has always been a transient town due to the federal government and associated contractors, so there will be lots of Nationals fans loyal to other teams too.
If they stick around, their children will be Nationals fans.