No recent poll that I know of, but last poll had Mongiardo leading Conway by almost twenty points. http://cincinnati.com/blogs/nkypolitics/2010/04/10/conway-mongiardo-spar-at-nky-debate/
If my Democrat friends are any measure, Conway is not well liked. Plus most of the Democrats I know are irate to say the least that Conway will not challenge the health care bill. We’ll see how well it holds true, though. Mongiardo has battled whispers of homosexuality in the past (he is married and his wife recently had their first child, but lots of people from his hometown insist they know he is homosexual, which will not play well in most of KY), but I guess we’ll see how desperate Conway is in the next month.