'At long last — major Republicans are raising their heads and highlighting Trump’s actual vulnerability: his inability to think for an extended time about anybody but himself. He seduces people with his confidence and his promises. People invest time, love and money in him. But in the end he cares only about himself. He betrays those who trust him and leaves them high and dry. This is a message that can sway potential Trump supporters, many of whom have only the barest information on what Trump’s life and career have actually been like. This is a message that can work in a sour and cynical time among voters who already feel betrayed. This is a message that can work because it’s a personality type everyone understands. This is a time when it is not in fact too late, when it may still be possible to prevent his nomination.'