Wisconsin Elections Commission Administrator Michael Haas said Homeland Security told 21 states that "Russian government cyber actors" targeted their state voter registration systems in 2016. DHS did not directly notify chief election officials of their states' status until Friday, according to a news release from the Maine Department of the Secretary of State.
Federal authorities have told officials in Washington that Russian hackers unsuccessfully tried to access election systems in the state prior to the 2016 general election.
Earlier this week, the state's budget writers approved diverting money from an unused election account to spend an additional $1.2 million to upgrade the office's cybersecurity measures for its voter registration system and business database.More news: Facebook removes ads targeting 'Jew haters'
Washington state was not hit in that effort, which involved a private corporation that provided election services for some states, the Secretary of State's Office has said.
State elections officials planned to discuss whether to respond to the questions from Trump's commission at its Tuesday meeting.
Wisconsin was one of 21 states notified Friday of the attempted hacking.More news: Macron convinced Trump will see U.S. interests lie inside Paris climate deal
Dean says the scan targeted the state's computer network generally, and not the election board network specifically.
Federal investigators and the Senate Judiciary Committee are investigating Russia's involvement in the 2016 presidential election.
Trump won the election and has called the Russian Federation story a hoax. After his win, Trump created a commission headed by Vice President Mike Pence to investigate voter fraud nationwide.More news: 'Twin Peaks' actor Harry Dean Stanton has died, aged 91
One thing the state is considering is whether to mandate that local clerks meet minimum security requirements for hardware and software they use, Haas said. There is also a spring election in April where an open seat on the Wisconsin Supreme Court will be filled.