People who plan to donate money to their favorite politician this election season should be careful they're giving cash to the candidate and not a crook. While the Commission administers and enforces City campaign finance laws, the Fair.Candidate, Contributor, Employer, Date, Amount. Furthermore, donors need donation receipts if they want to claim charitable donations on their tax returns. Eligibility Requirements. Will my Vote-by-Mail ballot be counted? Election Day Voting. Furthermore, donors need donation receipts if they want to claim charitable donations on their tax returns. County elections officials mail vote-by-mail ballots to all active registered voters about a month before the election. The California Democratic Party is the nation's largest statewide party.