I guess we should be grateful for small mercies in that these backwards, obstructionist, mendacious and pathetic politicians never learn. It's a form of Darwinism that they keep taking themselves out of the running by speaking and speaking and even more speaking of subjects they are too stupid to realize they are not smart enough to address.
Pity them a bit. Technology more advanced than a steam engine seams to baffle them. Politicians, particularly the kind of repressive, oppressive types that embrace magical thinking (what little there is) fear of science and of all things being equal seem unable to grasp a certain basic fundamental of being on a campaign trail. One of which being: What you say can come back to you.
Almost every person evolves a bit during their lifetimes. Experiences and exposure to things change you, or should. So it is okay if a belief changes over time or is tempered by maturity and progression. People may over time come to have a different opinion on some things than they did in the past. The problem arises when those views change swiftly depending upon the environment or venue as in cases where a politician 'flip-flops'. Or when those views and beliefs in spite of all evidence to the contrary will not evolve or progress beyond what they perceive as the norm in their insular frightened little world.
What the ridiculous samples of humanity, the Akins, Mourdocks and even the Romneys don't seem to understand is that their statements, once uttered, do not fade away. They haven't for years upon years. The time of campaigning when aspirants to office stood on the caboose of a train and speechified to a gaggle of miners in Kentucky is long gone. Politicians are not able to say one thing then fire up the boiler, leave the miners in their coal dust and ten miles distant vomit an entirely different set of promises to farmers knowing the disparate groups will never meet and compare notes.
Say one thing, assert another, promise something, dissemble another and millions, not a gathering of a few dozen, will know about it within minutes. They become caught like a deer in the headlights of a on-rushing truck. The speech to a group of the like-minded will without fail will be shown to the world at large to be regressive, disgusting and exclusionary. Hypocrisy will be revealed, stupidity exposed, guilt under a harsh spotlight. These distinguished public servants are gobsmacked when the waiters at their millionaire's luncheon spread their vile opinions via the internet. They are stunned when the waiters dare not to be deaf or blind robots but people with feelings and opinions. The politician who belittles more than half the nation in one generalizing sweep cannot comprehend that the message they spew in from of a camera will be seen by everyone who cares to look. In spite of what some media outlets attempt there is no technological or magical filter that ensures the public message reaches only the eyes and ears of the similarly minded.
Their fear of loss of money or power is almost comical. Almost inevitably the politician, shown to what a pathetic specimen they really are then back-pedals, performs an insincere 'flip-flop' or worse, reinforces through stupid false pride their previous statements. The system, however flawed, crashes against them hurting them, often fatally where it will cause the most damage. The campaign chest. Money dries up. Next comes influence and support as the other deer not yet foolish enough to make the dash from forest's edge shrink away from the exposing lights. They bide their time, waiting for the road to clear, not understanding that every time they make the mad run out from cover the car is almost there, racing down the road to meet them.
So it is somewhat good these politicians do not learn from their mistakes. The more they speak the more they are outed and marginalized by the rational population. Eventually even those that do not believe in allowing people to thrive, those that adhere to some disgusting cult of suffering, those who desire nothing more than money and influence and sell principles and people to get it will have to change or pretend to. Each time they spew some ridiculous bigoted or ignorant rant the world reacts by healing and improves by relegating them to irrelevancy. Slowly, steadily, eventually they will fade away to be replaced by better persons who actually believe in liberty and equality.