On Friday morning, the entire panel on MSNBC’s “Morning Joe” expressed dismay at an anecdote in an upcoming book from Puerto Rico’s former governor that Donald Trump glibly talked about using nukes during a conversation in 2017. In Ricardo Rosselló’s book The Reformer’s Dilemma, the former governor described “surveying damage done to the island after Hurricane Maria with the former president when Trump commented, ‘But I tell you what … If nuclear war happens, we won’t be second in line pressing the button.'” Reacting to the report, the Washington Post’s Eugene Robinson pointed out that preside…