ATLANTA (CBS News) — Former Georgia Republican Senator David Perdue launched his bid for governor of Georgia on Monday, setting up a high-stakes primary challenge against incumbent Republican Governor Brian Kemp.

Perdue’s decision comes just days after Democrat Stacey Abrams announced her campaign for governor, her second effort, after she lost to Kemp in 2018.

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Perdue’s website went live late Sunday night and encouraged supporters to “join our team to stop Stacey Abrams.” In his announcement video on Monday, Perdue attacked Abrams and accused Kemp and Republican Secretary of State Brad Raffensperger of dividing the GOP in Georgia.

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