I didn’t say there was logic to his needs but the undeniable fact of the chaos it would generate would invalidate any election on the basis of credibility anyway.
What exactly would generate the chaos you're talking about? An attempted declaration of martial law?
First of all, the federal government doesn't run elections, the states do. Think of the vast and formidable reach of power that would be required to stop free elections in every precinct in America. Hard to imagine.
Obama would need something on the scale of a nationwide insurrection to even have the justification to declare martial law. Even then, it probably wouldn't stick, because he doesn't have the support of the military, nor is Congress marching in lock-step to his every beck and call.
If he were to try something like that, you can bet your ass that a mob of congressmen would have some kind of paper filed with the Supreme Court within the hour, demanding an arrest warrant on Obama for that attempted coup.
A president can't simply declare martial law over a country of 300 million people without first having some key preparations in place, first of which is a disarmed citizenry. Secondly, a president would have to have the unquestioned loyalty of the entire military. Thirdly, a president would have to have an ironclad reason to declare martial law. It would have to be viewed by nearly every person in the country as the best possible solution to the "crisis", to have any hope of success.
Obama doesn't have any of these key factors in place, which means that even if he lays awake at night dreaming of putting his boot on the neck of the American people, it'll never come to pass.