The problem of election misinformation is vast. Part of the problem occurs when there is high demand for information about a topic, but the supply of accurate and reliable information is inadequate to meet that demand. The resulting information gap creates opportunities for misinformation to emerge and spread.One major election information gap developed in 2020, when the Covid-19 pandemic drove many states to expand access to voting by mail. Inadequate public knowledge about the process left room for disinformation mongers to spread false claims that mail voting would lead to widespread fraud. Election officials could not fill information gaps with accurate information in time. As is now well known, no less than former President Trump promoted these false claims, among others, to deny the 2020 presidential election results and provoke the January 6, 2021, attack on the U.S. Capitol.In 2022, false narratives about a stolen 2020 election persist, even as an unprecedented spate of restrictive voting law changes across the country has created fresh information gaps and, thus, fresh opportunities for misinformation. Since 2020, at least 18 states have shrunk voting access, often in ways that dramatically alter procedures voters might remember from the past. Meanwhile, lies and vitriol about the 2020 election have affected perceptions of election administration in ways that complicate work to defend against misinformation.This paper identifies some of the most significant information gaps around elections in 2022 and new developments in elections oversight that will make it harder to guard against misinformation. Ultimately, it recommends strategies that election officials, journalists, social media companies, civic groups, and individuals can and should use to prevent misinformation from filling gaps in public knowledge. Lessons from other subjects, such as Covid-19 vaccine ingredients and technologies, show how timely responses and proactive "prebunking" with accurate information help to mitigate misinformation