Marc Ambinder, who has a new blog over at The Week, sizes up the next two months:
The election may hinge on whether Americans look at Mitt Romney and see someone who isn't a caricature. The GOP convention was not the disaster that pundits made it out to be, but neither was it an unalloyed success. Romney had a free swing at the bat, and by dodging specifics, asked Americans to define him based on the type of man that he was, rather than the type of president he will be. Both are important, of course, but the latter is arguably easier for Romney to carry, because his campaign fumbled the biographical angle from the start.
Romney's attack today is that Barack Obama has no plan to turn the economy around and was given a four year chance to do it. But while Americans disapprove of Obama's handling of the economy and tell pollsters they like Romney's ideas better, they don't know what those ideas are, because Romney hasn't really told them. And the Democrats did a pretty decent job defining them in the breach last week. The major danger for Romney: He enters the debate season with voters growing more suspicious of his (undefined) policy proposals while simultaneously not having a good idea of who the guy is in his maw.
The Dish 