Jessica Kershaw, the Obama campaign's Ohio Press Secretary, confirmed in a statement to BuzzFeed that the campaign checked every supporter's identification at the door.
"We checked every ID at the door to make sure it matched with the name on the ticket that supporters filled out," she said. "We did this for every person who came in."
The Obama campaign has faced infiltrators from the Romney campaign, which has deployed aides and volunteers to blend in with supporters and attend Obama events.
Republicans point out that while they check IDs for their supporters, the Obama administration opposes efforts to require identification at polling places on election day — so called voter ID laws — arguing they are discriminatory.