A small group gathered at the Brooklyn Park Water Treatment plant last week to do the painstaking work of preparing for a statewide election.
Local officials fed paper ballots into machines, marking some incorrectly to make sure the equipment caught the errors. Workers carefully checked the results against a spreadsheet. These accuracy tests, which happen across the state before any election, are open to the public but usually sparsely attended.
"It can be a little boring," admitted Ginny Gelms, the elections director for Hennepin County. "Sometimes people show up and they're like, 'OK, I've seen enough.'"
But election officials in Minnesota and across the country expect the finer points of voting systems to get more scrutiny than usual in Tuesday's midterm, the first contest since Donald Trump and his allies activated a national network of activists motivated by false claims of widespread voter fraud. Republicans have recruited potentially thousands of poll challengers and first-time election judges in Minnesota this cycle and are offering their own training on how to monitor voting and lodge complaints.
Minnesota election officials — who rely on volunteers every cycle — hope the state's unambiguous laws dictating who can do what at polling locations mean things will go smoothly on Election Day.
"The risks that we've all been hearing about nationally are risks in Minnesota too, there's no question about that," said Secretary of State Steve Simon, a Democrat running for re-election. "I would say the risk is lower in Minnesota for a number of reasons, including that our laws are crystal clear as to roles and responsibilities and restrictions in the polling place."

In Minnesota, only certain people are allowed inside a polling place during voting hours, including voters and authorized poll workers. Campaigning around polling places is prohibited, and no gatherings are allowed within 100 feet of the building.
State political parties always have some role in recruiting election judges and poll challengers to help with the process. Under law, each major party is allowed only one challenger per precinct who can contest voters' eligibility, as long as the challenger has personal knowledge that someone is ineligible to vote. They can't speak to or approach voters.