Mullin pledges to go after voter fraud after Trump revives election interference claims: Homeland Security Secretary Markwayne Mullin spoke about election security a day after President Trump claimed during his primetime address that China interfered in the 2020 election. CBS News’ Jake Rosen joins to discuss Mullin’s remarks. #ElectionFraud #VoterSecurity #Election2020 #TrumpClaims #MullinRemarks