MEMPHIS, Tenn. (AP) — A Tennessee city's first black mayor has announced he wants to "do it again."

The Commercial Appeal reports 77-year-old Willie Herenton launched his campaign for Memphis mayor Thursday, ostensibly challenging incumbent Mayor Jim Strickland in 2019. Strickland has yet to formally announce another run.

Herenton was mayor from 1992 to 2009, when he resigned amid a federal grand jury probe into a real estate deal. That probe didn't yield formal action.

He spoke of "an unfinished agenda" Thursday, referencing the "plight of the young people" and poverty.

Political commentator Otis Sanford said Herenton should be taken seriously, as one of the most popular mayors.

Still, his announcement came as a surprise to some, including Shelby County Democratic Party officer Lexie Carter, who said voters might want a new candidate.

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Information from: The Commercial Appeal, http://www.commercialappeal.com