Sen. Kaine: 'Very significant consequences' for Russian vaccine meddling

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Senator Tim Kaine (D-VA) reacts to Ayman Mohyeldin after American, British and Canadian officials reported Russian hacking attempts to gain information on COVID-19 vaccine development. Kaine says while this is "not a surprise" it's nevertheless worrisome because of how Russian hacking and misinformation could have an effect on the 2020 election.