Jon Ossoff came close to winning a special election for a Congressional seat in 2017, in a race that received a lot of national attention and money. This race is competitive and Ossoff and Perdue are virtually tied in many polls. Per Georgia law, if neither candidate receives 50% the race goes to a runoff, which could push the fate of the Senate majority to January. Thanks for your consideration. See more of the races I'm watching here.
For more information on the candidate's positions, see: https://electjon.com