First, the lovely indictment not just of Senator Landrieu, but of all that she represents:

Second, a detail exposition of his poltical conversion:

This man is going to be pilloried. He’s going to be called Uncle Tom, Oreo, race traitor, inauthetically black. That has been standard operating procedure on the poltical left for decades. It’s been standard because it works: it casts the target outside of the realm of the “respectable” and allows the progressive to display his unconcious contempt for and fear of actual black people while feeling totally justified in doing so. It’s a splendid rhetorical trick.

But all rhetorical tricks run their course eventually, become cliche, and lose their powers of persuasion. The left has made good hay out of equating classical liberalism with racism and indifference. They cannot do so forever.