What they did in a 3rd World Country. Yes, I know it will never happen:

You don’t need to be a rocket scientist or political scientist to figure out what needs to be done. In the long run, we need massive election reform — including a new and improved Voting Rights Act that would pinpoint the most pernicious voter ID laws, an Election Day federal holiday, and same-day voter registration. We need a voting system that leaves a real paper trail that can be routinely audited and easily investigated when there are allegations of vote tampering. And, as the Times article makes clear, we need a more thorough investigation of computer hacking and other problems that occurred in 2016 — regardless of the possibility that we might learn the unthinkable.

This isn’t the first time America was afraid of asking hard questions. Does anyone remember the Warren Commission? There’s no precedent for undoing an election result if an investigation uncovered proof of direct interference with the balloting, and so perhaps it’s not shocking that the political establishment isn’t eager to contemplate this. Personally, I think that Americans can handle the truth — and that a serious investigation is called for. But for right now, if you want a government that takes election tampering seriously, you may have to move to Kenya.

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There is no evidence that anything happened.  In fact, when Trump was saying it was rigged and while the pubs were all up about voter ids and such . . . the left was saying the same thing.  But after Hillary lost well now we need a Warren commission . . . 

There are 50 different SOS certifying 50 different votes . . . there are thousands and thousands of poll workers using different voting systems at different polling places.

The only problem here is that your candidate lost (and of course the establishment's candidate).  That is the only piece of evidence that anything irregular happened.