She became the highest-profile Democrat to announce her candidacy in an election that will be a crucial test of her party’s ambitions in Georgia.

When Keisha Lance Bottoms first ran for mayor of Atlanta in 2018, part of her campaign’s appeal was that she was deeply rooted in Black Atlanta. Supporters loved to wear T-shirts emblazoned with “My mayor’s name is Keisha” from the barbershop to the neighborhood BBQ.