I absolutely agree. Independent audits for all the primaries would prove without doubt if electoral fraud was committed and what the extent of the fraud is. Neither side should object to audits being conducted, because there’s no harm in doing them. They guarantee openness, honesty, and transparency.
I also agree with getting rid of voting machines. Many European countries have tried voting machines and then rejected them after proving they could be tampered with. As a result, we are one of the only democracies that has unverifiable election results. Returning to hand-counted paper ballots would help solve the issue.