Now, at long last, the big guns are being brought to bear. Now, at long last, some major Republicans like Mitt Romney are speaking up to lay waste to Donald Trump.

For months Trump’s rivals and other Republicans have either retreated in silence or tentatively and ineptly criticized him for exactly those traits that voters like about him: for being a slapdash, politically incorrect money-hungry bully.

But now finally — 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.