KEY POINTS
  • Former Department of Homeland Security Secretary Jeh Johnson says he does not know of evidence that Russian hacking affected 2016 vote tallies.
  • But he adds that he can't say whether Russian efforts affected public opinion.
  • Johnson outlines possible methods for state election officials to improve their cybersecurity.

Obama Homeland Security Secretary Jeh Johnson testified Wednesday that he does not believe Russian hacking "altered or suppressed" votes in the 2016 election.

Still, he contended that the United States "can and should do" more to protect its election systems from cyberattacks.