"President Breshnev" quite suits Bush, really. I suppose the Russians might be forgiven for feeling insulted, but Brezhnev did get his country involved in a foreign disastrous and brutal war which did more than anything to bring about the downfall of the Soviet Empire.

Is it possible that this wasn't a slip of the tongue but a deliberate comment on the historical parallels between these two incompetent rulers?

The regime in Guantanamo being another parallel with the similar excesses of the Soviet system. Here's a piece about some of the evidence about that which is coming out in a current case. The US psychological torture system is finally on trial : "America has deliberately driven hundreds, perhaps thousands, of prisoners insane. Now it is being held to account in a Miami court"