Former state Rep. Beth Beskin, R-Atlanta, has resigned her job at the state law department to run for an open seat on the Georgia Supreme Court.

The opening is to be created by the planned retirement of Justice Robert Benham, the first African American to serve the high court. His term expires at the end of 2020.

Beskin joins two other announced candidates for Benham's place on the nine-member court: Georgia Court of Appeals Presiding Judge Sara Doyle and former U.S. Rep. John Barrow, D-Georgia.

Beskin said Thursday she has resigned from her job in the office of Attorney General Chris Carr—where she has litigated cases of waste, fraud and abuse—to run for the high court.

"I am running to bring my experience in business and law to the Supreme Court and to defend our shared values of what makes Georgia such a great place to live, work, own or run a business and raise a family," she said in her campaign announcement.

Beskin is a member of the Georgia Judicial Nominating Commission, appointed this year by Gov. Brian Kemp. Former Gov. Nathan Deal appointed her as one of two liaisons to Atlanta Public Schools when the system was put on accreditation probation. She served there until the school system regained its full accreditation status.

Beskin served Atlanta's District 54 in the House of Representatives from 2015 to 2019. During the 2017-18 legislative term, she served as the chief deputy whip for the majority party (Republican) caucus. But she lost the seat in 2018 to a Democrat, Rep. Betsy Holland.

Beskin has served on the Georgia Commission on Child Support as well as on the Capitol Arts Standards Commission. She is a former geologist, as well as a former pension plan administrator. She earned her J.D. at Louisiana State University's law school and joined the State Bar of Georgia in 1993.

Doyle and Barrow are already campaigning for the election in May 2020.

Doyle won her current job in a highly contested election in 2008—beating even current friend and colleague Chief Judge Chris McFadden.

Barrow also is a veteran campaigner. He served 14 years on the Athens-Clarke County Commission before being elected to Congress from his home district. And he was the Democratic runner-up for Georgia secretary of state last year.

More candidates may come before the qualifying period next spring.