I don't think he was saying that Bush or Republicans are better, rather the opposite.

Back when GWB was in power he was widely deride as a tyrant (especially online) and the worst thing to happen to American foreign relations ever. Yet it would not be hard to make an argument that Obama has been worse with regards to civil liberties and foreign relations. Different guy, different party, same (or worse) policies.

Also remember Obama was (re)elected only some months ago.