Research 2000 has been working double-time in Kentucky lately; they ran a poll for Daily Kos last week showing McConnell up by four, and they turned right around and fielded another poll for the Lexington Herald-Leader (10/19-21, likely voters, 10/15-16 in parens):
Virtually unchanged. Once again, Lunsford still faces the same problem: while McConnell's unfavorables are high, so are his. Which man will they dislike more on election day?