No voting system is foolproof, and hiccups are inevitable in a country with roughly 3,000 counties. The distributed nature of American elections is a strength on this point, since voting is handled by innumerable local officials instead of a few central authorities. Texas has declined to certify Dominion systems for its elections. The examiners objected to everything from the “tedious” and “unintuitive” setup, to a crash they witnessed in an adjudication module, to an indicator light that hackers could hypothetically remove to get at a USB port.

But so far there’s no good evidence of voting problems that would come close to Mr. Biden’s lead of 73,000 votes in Pennsylvania or 145,000 in Michigan. In Georgia, the Republican Secretary of State last week ordered a hand recount of all five million ballots. The effort turned up 2,600 missing votes that Floyd County forgot to upload. Adding them would cut Mr. Biden’s lead to slightly north of 13,000. But the error isn’t Dominion’s fault, and it better hope no glitches are revealed, given its 10-year contract with the state for $107 million.

If Georgia’s recount doesn’t find big irregularities, then these claims should be put to rest. In the George W. Bush years, the conspiratorial left focused on Diebold, a maker of electronic voting machines. It would be a mistake for anyone on the right to go down a similar dead end, especially if Georgia’s paper ballots give the same result as the computers.