There are three aspects of Dominion Voting Systems that all came together to help perpetrate the greatest fraud ever in an American election.
First the voting system was designed for election tampering. Oddly elaborate algorithms that facilitate assigning floating point factors to votes and shifting vote totals from one candidate to another. (Question: Why would a voting machine EVER need to use anything but integer math?)
Second, all states except Texas gave a "rubber stamp" approval of the Dominion system. Why was Texas the only state that actually had an expert panel analyze the voting system? Dominion tried three separate times to win the lucrative Texas contract and was soundly rejected all three times based on it's vulnerability to tampering.
Third, once deployed you still needed willing actors to manipulate the machines to execute the vote tampering and we have numerous examples of exactly that. "Forgotten" memory sticks containing hundreds of thousands of votes, active modems allowing access to the internet, Dominion experts who were running the machines after the elections, etc.
Dominion Voting Systems was the primary tool for election tampering in the 2020 election. At a minimum, the computer and the software need a nationally televised expert review. Bring Dominion experts and outside experts in front of the Senate and allow each to present their side. That would go a long way to restore faith in our election system. The Wall of Denial coming from our government and Media isn't going to cut it.