Former Senator David Perdue set to announce primary challenge against Georgia Governor Brian Kemp

Former Georgia Republican Senator David Perdue is expected to soon launch a bid for governor of Georgia, according to a source familiar with the matter, setting up a high-stakes primary challenge against incumbent Republican Governor Brian Kemp. 

Perdue's decision comes just days after Stacey Abrams launched her campaign for governor on the Democratic side. Politico was first to report the news and said a formal announcement is expected to come on Monday. 

Perdue's campaign website went live late Sunday night, encouraging supporters to "join our team to stop Stacey Abrams."