Carol Moseley Braun, who was the first black woman elected to the U.S. Senate, hopes to establish another first. She wants to be the first black woman elected mayor of Chicago. Braun announced her entry into the crowded field on Saturday with a rally and slogans that sounded familiar. She declared that she wanted to be a voice for the unheard and an advocate for the underrepresented.

Supporters led by Rep. Bobby Rush chanted "Yes, Carol can!" echoing the mantra of Barack Obama's 2008 campaign. Braun will face off against, among others, Rahm Emanuel, Obama's former chief of staff; Rep. Danny Davis; State Sen. James T. Meeks; and City Clerk Miguel del Valle. Braun served as a U.S. senator from Illinois from 1993 to 1998.

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Correction: In an earlier version of this article, Bobby Rush was misidentified as Bobby Seale.