Lawrence: Today Trump said, 'I don't want to be stupid.' Too late, Donald. Too late.

Tonight on The Last Word: Donald Trump says he called off new strikes on Iran. Also, Trump drops the IRS suit for his $1.776 billion fund to pay his allies. Plus, three are killed in a shooting at the San Diego Islamic Center. And Democrats warn of a new assault on voting rights. Rep. Adam Smith, Rep. Ro Khanna, Rob...