When there is no real-world penalty for lying, distorting and demonizing, then the only thing to stop you is your own moral compunctions. However, if McCain actually had any moral compunctions on this point, he wouldn’t be running the campaign he’s running now. And I would suggest that a man who shows no moral compunction in pursuit of power is not a man who will suddenly find those compunctions once he has power. An election is a job interview, people. If someone lies to you during a job interview, and says to you “yes, I’m lying, what of it?†when you catch them in the lie, and you hire them anyway, well. You shouldn’t be surprised at what comes next.