We allow mainstream press, owned by allies of a politician, to make outlandish claims unverified in the weeks leading up to an election. This has always been "correctable" in the past, in a world where articles could be retracted or condemned, particularly by even more mainstream outlets (because there is a spectrum from tabloid journalism to "respectable"). With social media, the genie is out the bottle with that initial statement, and there's no way to set the record straight anymore, let alone in two weeks before an election.
I realize that I used a ton of loaded terms here. That reflects a couple of opinions that I hold: that there is value in institutions, that truth is a social construct, that maintaining order in people's lives has intrinsic value. Folks are free to disagree, but please be clear about whether it's with the premise or the conclusion.