WaPo:

Special counsel Robert S. Mueller III’s investigation of the “sweeping and systematic fashion” in which Russia interfered in the 2016 election highlights the breadth and complexity of the U.S. voting infrastructure that needs protecting.

From voter registration to the vote itself to election night tabulation, there are countless computers and databases that offer avenues for foreign adversaries to try to create havoc and undermine trust in the democratic process.

In addition to targeting the Democratic Party and Clinton campaign in 2016, Mueller noted in his report, Russian hackers also went after election technology firms and county officials who administer the vote — officials often without the resources to hire information technology staffs.