TALLAHASSEE, Fla. (AP) _ Republican Sen. Connie Mack will not seek re-election in 2000, The Associated Press learned Friday.

Mack already has told close friends and family members of his decision and plans to tell his staffs in Washington and Florida on Monday, an adviser close to Mack said on condition of anonymity.

A public announcement is set for March 13 in Fort Myers, Mack's hometown.