I do believe voter fraud is a bigger problem than the press wants to admit.  But as far as the examples of poll workers changing the election, that would be election fraud, since they are part of the system that runs the election.  As far as the post man throwing out ballots being voter fraud, it depends if he is acting under the influence of a government agent with a plan to corrupt the election through bribing, persuading,  directing postal workers to not deliver ballots.    Voter fraud is someone not connected to the government voting more than once.   Here is a legal web site's definition: https://www.findlaw.com/voting/how-u-s--elections-work/what-is-electoral-and-voter-fraud-.html What Is Voter Fraud? "Voter fraud" is the illegal behavior of individual voters, such as: Duplicate voting: when someone impersonates another voter to vote twice Vote selling: when a voter offers to vote a certain way for pay A non-citizen voting in an election when they do not have a right to vote A felon voting in an election before they have a right to do so Voting in a district where the voter does not (or no longer) lives  What Is Electoral Fraud? "Electoral fraud" or "election fraud" is illegal interference with the process of an election. Examples of electoral fraud can include: Campaign or agency workers throwing away voter registration cards Vote buying: when a campaign offers money for votes Workers or volunteers forging signatures on a petition to get an issue or person on a ballot Ballot harvesting: when a person or agency or campaign workers collect absentee or mail-in ballots to submit them (which provides an opportunity to change the vote or fail to submit the ballot for counting) Robocall campaigns spreading misinformation about election dates, polling locations, or other election-related information in order to prevent some voters from voting Illegal activity related to the counting and certification of election results, such as claims that some voting machines are changing votes Violations of campaign finance laws (failing to report campaign donations or sources as required by law, or donating more than is allowed)