Gaslighting is a great way to put it. I have tried to find headlines that trended back the fraud happened to wake up some of my leftist friends, and could not find it, and had to use alternative searches like Dogpile to find them.
This also happened with other topics like global warming and masks, and when it first happened, I thought maybe I was misremembering where I saw it, and it never was high up on Google search for that topic. It has happened too many times though to be just me not remembering correctly. I later learned from a video Trump posted, that Google filters search results to what they see fit, so that only their leftist agenda rises to the top. If something that contradicts them starts trending and thus rises to the top of a search result, they soon gear up their filter to remove it from top results.