ATLANTA (AP)—The city that became a post-civil rights movement emblem of the political power held by African-Americans could have a White mayor for the first time in a generation—a possibility that has some in the Black community scrambling to hold on to City Hall. Atlanta Councilwoman Mary Norwood, who is White, is one of the front-runners for the Nov. 3 election, along with City Council President Lisa Borders and state Sen. Kasim Reed, both of whom are Black. FINAL PREPARATIONS— City of Atlanta mayoral candidates Mary Norwood, second from left, is surrounded by a field of Black candidates including Lisa Borders, left, Peter Brownlowe, right, Rod Mack, second from right, and Glenn Thomas as they make final preparations before facing off in a debate. If Norwood wins the election she would become the first White mayor of Atlanta in a generation. All three have bristled at a racially charged e-mail circulated by a Black leadership group calling for Norwood’s defeat before a possible runoff. If the Black candidates split the African-American vote, Norwood may find herself in a runoff, where she could benefit.