More than 10,000 U.S. election jurisdictions run voting under state and local rules, a decentralized structure experts say makes nationwide manipulation extraordinarily hard.
That system layers checks across in-person and mail voting, including ID requirements, signature verification, bipartisan review, witnesses or notarization, helping catch the rare cases of misconduct that do occur.
Fewer than 475 potential fraud cases were found in six contested battleground states in an AP review of the 2020 election—far too few to change Joe Biden's victory.
Trump renewed claims Thursday that federal authority is needed to stop elections from being "stolen," even though judges, state officials and his own administration's Homeland Security arm previously rejected allegations of widespread fraud.