This is a couple of days old, but it is still just a downright rude thing to say about Megan McArdle:
It is nearly a cardinal rule of American politics that if Megan McArdle likes your policy plan, it will go down in the Senate 95-0, and end with a fumbling recantation on Meet the Press.
…even if it was actually said by, well, Megan McArdle.
Read the whole thing, by the way.