The popular vote was just close enough, that if BHO don't tread lightly in the beginning and stay moderately in the middle ground, many of his 'light-weight' supporters may turn on him like hungry wolves.
And, if he DOES stay on middle ground, instead of going far out in left field, many of his major supporters might turn on him.
One wrong move and it could get ugly fast.
Just hope he doesn't do too much damage to the country.