ARIZONA SENATE (open)
Current polling: Kyrsten Sinema (D) 51, Martha McSally (R) 47 (CNN, 10/29)
Why this race matters: With control over the Senate at stake, this is a must win for Democrats. Kyrsten Sinema, the Blue Dog Representative from Tucson, is running against Martha McSally, the retired U.S. Air Force Colonel, in what has become one of the most fiercely contested races in the country. Sinema has gained significant traction in recent weeks highlighting McSally’s voting record on healthcare, attacking the Republican for voting to eliminate protections for individuals with preexisting conditions. With numerous polls coming out daily with either candidate in the lead, one thing is for sure – it’s going to be tight.