This Oct. 19, 2017, file photo shows a new voting machine which prints a paper record on display at a polling site in Conyers, Ga. (AP Photo/David Goldman, File)

In a new report, the Brennan Center for Justice warns that many states need to replace old or insecure voting systems quickly to be ready for the 2020 elections, but voting experts say that states need more money to do so effectively. Democrats and cybersecurity experts advocate for paper-based voting systems as cost-effective and secure – though inaccessible to voters with certain disabilities. Republicans support a more accessible, albeit more expensive, alternative called ballot-marking machines.