Voting machines

Democratic presidential candidate former Vice President Joe Biden speaks at a primary election night campaign rally Tuesday, March 3, 2020, in Los Angeles. (AP Photo/Chris Carlson)

A Mae waits as her owner Daniel Delgadillo, left, 42, casts his ballot in the Super Tuesday primary election in El Segundo, Calif., Tuesday, March 3, 2020. (AP Photo/Ringo H.W. Chiu)

FILE - In this June 13, 2019, file photo, Steve Marcinkus, an Investigator with the Office of the City Commissioners, demonstrates the ExpressVote XL voting machine at the Reading Terminal Market in Philadelphia. Nearly 1 in 5 U.S. voters will cast ballots this year on devices that look and feel like the discredited paperless voting machines they once used, yet leave a paper record of the vote. Computer security experts are warning that these so-called ballot-marking devices pose too much of a risk. Ballot-marking machines were initially developed not as primary vote-casting tools but as “accessible” alternatives for the disabled. They print out paper records that are scanned by optical readers that tabulate the vote. They cost at least twice as much as hand-marked paper ballots, which computer scientists prefer because paper can’t be hacked. (AP Photo/Matt Rourke, File)

FILE - In this May 9, 2018, file photo, a woman votes in Sandy Springs, Ga. It’s been more than three years since Russia's sweeping effort to interfere in U.S. elections through disinformation on social media, stolen campaign emails and attacks on voting systems. U.S. officials have made advances in trying to prevent similar attacks from undermining the 2020 vote, but challenges remain. (AP Photo/John Bazemore, File)

FILE - This Nov. 7, 2018, file photo shows an election worker stacking ballots into a sorting machine at the King County Elections office in Renton, Wash. An obscure Seattle-area election will be the first in the country where all voters will be allowed to vote online. (AP Photo/Elaine Thompson, File)

FILE - In this Sept. 22, 2016, file photo, employees of the Fulton County Election Preparation Center in Atlanta test electronic voting machines. A computer security expert says he found that an election server central to a legal battle over the integrity of Georgia elections showed signs of tampering. The server was left exposed to the open internet for at least six months, a problem discovered in August 2016. (AP Photo/Alex Sanz, File)

FILE - In this Aug. 16, 2019, file photo, a digital voting machine sits on a table in Raleigh, N.C. Lawmakers expressed concern about foreign components in the nation’s election equipment, as the top executives of the three major voting manufacturers appeared before Congress on Thursday to try to provide assurances that their products are secure. (AP Photo/Allen G. Breed, File)

Georgia Secretary of State Brad Raffensperger speaks with a reporter at a conference of local election officials in Savannah, Ga., Wednesday, Dec. 11, 2019. Raffensperger told about 700 local officials who are preparing to rollout new voting machines statewide to expect more than 1 million additional voters at the polls in 2020 compared to the last presidential election in 2016. (AP Photo/Russ Bynum)

In this photo taken on Wednesday, Nov. 27, 2019, Namibian President Hage Geingob arrives to cast his vote in Windhoek, Namibia. With more than 85% of votes counted, Namibia’s president is set to win another term and already is thanking voters. The southern African nation’s electoral commission says the president leads with 57% of the vote while the top opposition challenger has 28%. That’s a sharp decrease in support for the president from 87% in the previous election in 2014. Public frustration has been high over corruption scandals and unemployment. (AP Photo/Brandon van Wyk)