HONOLULU—Hillary Rodham Clinton will headline her own night at the Democratic National Convention, Barack Obama’s campaign announced Sunday in a nod to her strong second-place showing in the party’s presidential primary.

The former first lady will speak on the second night, Tuesday, Aug. 26—the 88th anniversary of the women’s right to vote. The campaign and convention committee in a statement called her “a champion for working families and one of the most effective and empathetic voices in the country today.”

The Obama campaign is trying to avoid hard feelings among Clinton’s supporters at their carefully orchestrated convention. But they still haven’t reached a deal on whether Clinton will be included in the roll call vote for the nomination, which could make the party appear divided heading into the final stretch of the White House race.

The campaign said Obama’s wife, Michelle, is slated to headline the opening night on Aug. 25, while the yet-to-be-named vice presidential pick will speak on the third. Democratic officials say Bill Clinton is also scheduled to speak that night, but only the headliners were in Sunday’s official announcement, made while Obama was vacationing in his native state of Hawaii.

Obama is expected to become the party’s first black presidential nominee on the fourth and final night as the convention moves from Denver’s indoor Pepsi Center to a bigger venue at Invesco Field at Mile High Stadium. It happens to be the 45th anniversary of Martin Luther King’s “I Have a Dream” speech.