‘He’s useless’: Father of Parkland victim responds to Rubio backtracking on rifle reform

Republican Sen. Marco Rubio (FL) says he does not support raising the minimum age to buy a rifle, in a complete reversal of what he said in 2018 to Parkland shooting victim father, Fred Guttenberg. CNN's Erin Burnett talks to Guttenberg, about Rubio's about face.