Update 11:20 a.m.: President Obama arrived at Pfitnzer Stadium just before 11 a.m. via helicopter.
Update, 9:30 a.m.:
The event is unlikely to affect PWCS operations, PWCS Director of Communications Phil Kavits said.
"Thus far, not aware of any anticipated problems having to do with the president's campaign event," Kavits told Patch.
Update, Sept. 21:
The parking lots at the stadium are now all full, Prince William County Police Department advised on Facebook.
"Those attending the event at the P'Nats Stadium must go to the PW Fairgrounds to park and catch a shuttle," the post read. "NO MORE VEHICLES will be allowed to park at the stadium."
Original story:
President Barack Obama will speak, route: {:controller=>"articles", :action=>"show", :id=>"president-obama-to-campaign-in-woodbridge-sept-21"} --> at
In my experience from covering several grassroots political events, people are not required to show photo ID to gain entry.