If nobody looks into the validity of a vote, who knows how often it happens? It's not a "phenomenon", it's a crime. Jimmy Carter did a speech in the last few years voicing concern about the ability to commit fraud with our system set up the way the left likes it. No voter ID and now add mass mailed voter ballots and you have all of the makings for unprecedented voter fraud on a mass scale. They absolutely found voter fraud in every state they looked into, but how do you "prove" it when nobody wants to really dig in and compare signatures, verify someone is actually alive, verify the citizenship of every ballot cast, verify that someone is eligible to vote by age or criminal history, verify it was cast in a timely manner, verify that we ACTUALLY counted every ballot cast (legally), verify the machines are tamper proof and do computer forensics to verify it? Whether you believe this election involved mass fraud or not, there was undeniable fraud and undeniably we DID NOT do the things I mentioned. We probably never have looked that closely into election fraud in 100 years or more and the further we move away from in person, hand cast ballots, the bigger the potential for voter fraud and tempering there is. Just because "your guy" was declared the winner by the media this time, doesn't mean the system is fair, accurate and just. More than 1/3 of this country openly admits they believe the system is corrupt. There are some on all sides that see the potential for mass fraud, even staunch conservative Jimmy Carter!