is uncommon, though postal voting has a greater risk of fraud than in-person voting. Not all states have standards for signature review. There have been concerns that signatures are improperly rejected from young and minority voters at higher rates than others, with no or limited ability of voters to appeal the rejection. Processing large numbers of ballots and signature verifications accurately has numerous challenges other than fraud. In the 2016 US Presidential election, approximately 33 million ballots were cast via mailed out ballots (about a quarter of all ballots cast). The number of people who voted early or with mail-in ballots set records in the 2020 election. This is because of the coronavirus pandemic and people shooing the option of absentee ballots. See also Electronic voting Provisional ballot Secret ballot Vote center Vote counting References Elections Political terminology Expatriate voting Voting Ballots