Well hell yes they can prove it, why otherwise would one think they’re being brought up on RICO charges?
another election official tried to report the early voting election fraud in CO and was found dead in her car shortly after a meeting with the FBI about it, her husband got arrested and did time for turning in her ballot after she died
in states with mail in only there is never a controversy over election results .
reporting election fraud is extremely risky and will result in death or destruction of your life