In addition, there was a big movement that claimed 2004 election was stolen from Kerry. Several books were published on it in fact. See this article from Politico, which covered it again in light of the Trump claims. https://www.politico.com/news/magazine/2020/12/19/2004-kerry...

I don't think this election was stolen, but in 2004, I did think there were oddities which were swept under the rug.