Amy Klobuchar 2020: Senator pushes for Mueller to testify, shares addiction prevention plan

On the Road to 2020, we’re talking to current and prospective presidential candidates about issues affecting the country. Democratic Sen. Amy Klobuchar of Minnesota announced her candidacy in February. She serves on the Senate Judiciary Committee and took part in questioning of Attorney General William Barr earlier this week. Klobuchar joins “CBS This Morning” to share her new plan for addiction prevention and treatment – a cause that is deeply personal to her.