Major News with Major Garrett: Greene vs Trump; MAGA successors; oil tanker; Hawley; health insurance

CBS Chief Washington Correspondent Major Garrett discusses the rift between Rep Marjorie Taylor-Greene and President Trump, 'she's chosen, quite obviously, to be highly visible,' in this debate. Who will be the next flag-bearer once Trump leaves office? The seizure of a Venezuelan oil tanker. Sen Josh Hawley and votes on health care plan.