Tonight on The Last Word: Vice President Harris hits Donald Trump’s “concepts” of a health care plan. Also, reproductive rights are a key issue in the Ohio Senate race. Plus, Sen. Rick Scott refuses to commit to debating his Dem opponent. And NYPD Commissioner Edward Caban resigns. Anderson Clayton, Sen. Sherrod Brown, and fmr. Rep. Debbie Mucarsel-Powell join Lawrence O’Donnell.