Republican Marsha Blackburn is now narrowly edging Democrat Phil Bredesen in Tennessee’s closely-watched Senate race despite Bredesen’s higher favorability with likely voters, a new NBC News/Marist poll finds. But both Blackburn and Bredesen have seen decreased popularity since the bruising campaign — including more than $50 million spent on television ads — kicked into gear. CONT.
Carrie Dann, NBC News
