I'm not an US citizen, so my knowledge of US politics may not be deep enough to grasp some of the subleties of the topic, but my overall impression was that unless you are very rich, it is in your best interest - and thus clever - to be liberal.

But I guess this part of the discussion borders "Politics is a Mind-Killer", so if you wish to inform me why it isn't clever to be liberal, it's probably best if we take the discussion to PMs.