Via CQPolitics Ford Pulls Even With Corker in Tennessee Senate Contest:

CQPolitics.com’s list of tossup Senate races continues to grow: The rating on the Tennessee contest for the seat of two-term Republican incumbent Bill Frist, the Senate majority leader, has been moved to No Clear Favorite from Leans Republican.

[…]

A SurveyUSA poll conducted Sept. 9-11 for NBC television affiliate WBIR in Knoxville found that of 638 likely voters, respondents preferred Ford over Corker 48 to 45 percent with a 4 percent margin of error. The close outcome in this and other independent polls contradicted “own” polls done for the candidates’ campaigns: surveys done for Ford show him with a wide lead, while Corker’s campaign said polls show the Republican well ahead.