I'm sure he knew which one was which.
He misspoke.
Notice how all MSM outlets are mentioning Nancy Pelosi and January 6 Security all in the same breath? It’s plastered everywhere. By Trump “misspeaking,” he’s managed to get all media outlets to connect Nancy Pelosi to the failed security efforts on Jan 6. The media’s “correction” are serving as media confirmation that Pelosi was, indeed, in charge of security on Jan 6. He got them to admit it, and they are broadcasting it everywhere! HaHaHaHaHa.