Special counsel Robert Mueller has documented a sweeping effort by Moscow to meddle in the 2016 election in Donald Trump's favor by hacking Democrats and spreading disinformation online, and FBI Director Chris Wray said in April that the government regarded last November's midterm election was "as just kind of a dress rehearsal for the big show in 2020." Adam Hickey, a deputy assistant attorney general in the Justice Department's national security division, told a House Oversight and Reform subcommittee that hacking was "inevitable." "Systems that are connected to the Internet, if they're targeted by a determined adversary with enough time and resources, they will be breached," Hickey said. "So, we need to be focusing on resilience." "We need to take a breath. "If we undermine ourselves, the confidence in our system, we will be doing our adversaries' work for them." Chris Krebs, head of DHS' cyber efforts, echoed the message, saying, "100 percent security is not the objective.