This software also allowed for pursuing more aggressive strategies in discussions on social media, the Washington Post newspaper reported, citing the party officials, on Saturday.
Moreover, 43 party members, called battle station organizers, had been sent to the most competitive US regions to promote pro-Democratic views and attack Republicans on local social media, according to the outlet.
The upcoming elections will be held in the middle of US Republican President Donald Trump's term in November. During the vote, US nationals will elect all 435 members of the House of Representatives and a third of the Senate.
READ MORE: Will Democrats Run to the Left or Center?
Since the 2016 US presidential election, the United States has been accusing Russia of interference in its internal affairs, particularly through social media. Russia has repeatedly dismissed these claims as unfounded, adding that meddling in other country’s domestic affairs contradicted its foreign policy.