By Ian Bremmer
The opinions expressed are his own.
Long live the king? You can't hold it against the Russian people for wondering just how long Vladimir Putin intends to remain in power with the recent announcement that he plans to return himself to the presidency and swap his partner Dmitri Medvedev into the prime minister slot. The electoral game Putin is playing is being compared to "castling" in chess-- a rook and a king swapping places, in order to shore up the defense.