Great news! And this is with a heavily Democratic sample too. The real electorate will likely have voted for Romney by 25 points.
The sample in this poll is 52D, 39R.
For your information: The actual registration is 54D, 38R.
Which means it's not "heavily Dem".
And who knows what your "real" electorate will be like in a year ...
Mr. Romney won Kentucky by 22 points. It is not particularly likely that such a state would produce an electorate that only voted for Mr. Romney by a mere 16 points in the 2014 elections.
PPP's prior poll of course had that Grimes in the lead.