...this video highlights....
As much as people complain, this chameleon nature of polticians is what they should use to their advantage. Polticians are obsessed with legacy and powerlust. Hence why they "evolve" on anything. Do you honestly think Barack Obama, or even George W Bush before him, gave a shit about gay marriage/rights? Nah... just about getting the funding from those that put them and keep them in power.