Well, it hasn't been created yet
An ad with just all the far right and far left conspiracies that the loudest of them say.
Simple tag line, do you really want these voices be the ones who decides your future? Get out and vote.
Brought to you by the middle majority.
I guess a lot depends on where you put your attention. If you look at the fringes of both parties, you will find them. If you look at the center of each party - the weight of authority, where the power to write and enforce laws is actually decided - to me the Rs have gone way, way far to the right on economics and government. Paul Volcker - Ronald Reagan's Fed chair - is out with a book on this point.
What are the big problems we face? Global warming. Healthcare. The budget. The Democrats' solutions may not be perfect, but at least they have been trying and are largely reality-based. The Rs are off in fantasyland. Eight years of moaning about the ACA, they get in power and offer... ? Nothing. They say they want to protect people with pre-existing conditions - while they sponsor a lawsuit asking courts to invalidate that protection. It's shameful. They pretend that massive, multi-trillion dollar tax cuts will pay for themselves.
This country badly needs a constructive conservative party to balance the liberals and it hasn't got one.