Republican Rick Jackson and Democrat Keisha Lance Bottoms are locked in a closely contested race for Georgia governor, with four September surveys showing either a Jackson advantage or an effective tie ahead of the Nov. 3 general election.

An InsiderAdvantage poll conducted Sept. 22-23 among 1,200 likely voters found Jackson receiving 48% support to Bottoms’ 46%, with 6% undecided. The Republican held a two-point advantage in the survey.

The Big Data Poll, conducted Sept. 21-23, showed an even tighter contest. Jackson and Bottoms each received 50% support in the survey, while another version of the results placed Jackson at 50.5% and Bottoms at 49.5%.

A YouGov survey conducted Sept. 15-18 also showed Jackson ahead, with the Republican receiving 46% support compared with 44% for Bottoms among likely voters.

Rasmussen Reports found a similar result in its Sept. 14 poll of 1,019 likely voters. Jackson led Bottoms 48% to 45%, while 7% remained undecided. The survey had a margin of error of plus or minus 3 percentage points.

The September polling marks a shift from some earlier surveys that gave Bottoms an advantage. A Fabrizio/Anzalone poll conducted in July showed Bottoms leading Jackson 48% to 46%, while an August InsiderAdvantage survey had the candidates tied at 46% each.

The governor’s race is open because Republican Gov. Brian Kemp is barred from seeking another term due to Georgia’s term limits. Bottoms, the former mayor of Atlanta, won the Democratic nomination, while Jackson secured the Republican nomination after winning the GOP runoff.

With the latest surveys showing either a tie or a narrow Jackson lead, the race remains closely divided heading into the November election.