They obviously took a right turn on this one (and truxt me, it's temporary,) because perhaps less than two days before they realized just how many of their own voters that they've alienated - basically by hating their own country.
Every issue they tried to get some traction on, had failed:
Trying to convince people that life is hard, and that we're all eating out of trash cans.
Outsourcing.
War.
Defense.
Leftist social matters: gay marriage and anything else they want to dismantle.
Our relationship with Europe (which the Dems now try to call a critisism of our relationship with 'the world'.)
So they tried to steal their opponents platform, but it's very shaky ground for them to stand on. They are simply to used to class warfare politics to maintain a "center' until november. They don't have the discipline.
Which means the election will be what it would have been anyway - a question of the candidate's philosophy and character. That can't be hidden forever.