The campaign for Senate Minority Leader Mitch McConnell (R-Ky.) released an internal poll Friday that showed him with less than 50 percent of the vote.
The poll showed him with 47 percent support from voters the first time that an internal poll has shown him under the 50 percent benchmark, dangerous territory for an incumbent.
The poll does have McConnell with a 9-point lead over his Democratic opponent, millionaire Bruce Lunsford, who polled 38 percent.
A McConnell campaign poll made public in May had him up 11 points with 50 percent support, while a January sample had McConnell with a 15-point lead, signaling that since then Lunsford has been making gains on the Republican lawmaker.
Lunsfords internal poll has the two in a tight race with McConnell leading 48 percent to 45 percent.