A few months ago, it was unthinkable that the senate seats in Arizona and Tennessee would be competitive. Most pundits figured these were pretty safe seats for the Republicans. Things have certainly changed though.
New polls show the Democratic candidates in both states currently enjoy a small lead -- Sinema (D) over McSally (R) by 7 points in Arizona, and Bredesen (D) over Blackburn (R) by 8 points in Tennessee.
It's still a month and a half until election day, and anything can happen, but Democrats have a reasonable chance to flip these seats (both of which are currently held by retiring Republicans).
The CNN / SSRS Poll in Arizona was done between September 11th and 15th of a sample of 854 registered voters and 761 likely voters The margin of error for registered voters is 4.1 points, and for likely voters is 4.3 points.
The CNN / SSRS Poll in Tennessee was done between September 11th and 15th of a sample of 852 registered voters and 723 likely voters. The margin of error for registered voters is 3.9 points, and for likely voters is 4.3 points.
