Nothing new here. We know that Romney is a liar and a hypocrite. Just look at his record, and compare it to what he says. Simple.
His most recent statements show that he lacks the judgement of a normal person his age. Obviously not presidential material.
Every president struggles in his first term these days, even when they are brilliant like Reagan, Clinton, or Obama. Bush of course was a dummy, and look at the results of his presidency. We are still trying to mop up the mess, with great suffering here and in other parts of the world. Romney appears to be about average in intelligence, which makes him unsuitable for the job. His advisors will control him because he is not smart enough.
But his dishonesty is also an issue. A presidential tax evader. Not the first one, but at least we know that he is a cheat before we go to the ballot box.\
The more interesting question is, why does the republican party put people like this up for nomination? They know what they are doing. They knew that Mr. Bush was stupid. They knew that McCain was lacking intellectually. They know that Romney is not the sharpest knife in the drawer. It seems that one would want a smart president, since the rest of the world is smart, and we have such complex problems.