"President Biden directly challenged Putin on a range of human rights issues," RIA Novosti quoted Sullivan as saying.
According to him, the United States has outlined for Russia the limits of action, which it considers unacceptable in cyberspace.
He added that the US sees the potential for cooperation with Russia on Syria.
Earlier, Grigory Yarygin, associate professor of the Department of American Studies at St. Petersburg State University, praised the negotiations between Vladimir Putin and Joe Biden in an interview with RT.