Sen. Obama should have no problem being for a mail-in vote since he was one of three Senators to co-sponsor such a bill in 2007 allowing it . -Vote by Mail allows voters to educate themselves because they receive ballots well before election day , which provides them ample time to research issues , study ballots , and deliberate in a way that is not possible at a polling station . -Vote by Mail is accurate - at least 2 studies comparing voting technologies show that absentee voting methods , including Vote by Mail systems , result in a more accurate vote count . -Vote by Mail results in more up-to-date voter rolls , since election officials use forwarding information from the post office to update voter registration . -Vote by Mail allows voters to visually verify that their votes were case correctly and produces a paper trail for recounts .