Probably was hijacked from the rigging, by someone. https://notthebee.com/article/pelosi-just-repeated-that-she-thinks-the-2016-election-was-hijacked-by-interrupting-an-oxford-debate
Pelosi says 2016 election was "hijacked" during Oxford Union debate with Mumford & Sons guitarist | Not the Bee
Yo Snopes, I need a fact check. We've got an election denier over here!! We can't let this misinformation be shared - it's a threat to democracy!
https://notthebee.com/article/pelosi-just-repeated-that-she-thinks-the-2016-election-was-hijacked-by-interrupting-an-oxford-debate