President Johnson used the room in 1968 to tell Americans he would not seek re-election and President Nixon gave several speeches regarding the Watergate scandal , including his decision to resign from the presidency in the wake of Watergate in 1974 . Obama to give Oval Office address on end of combat mission in Obama . Presidents do n't give speeches from Oval Office casually , says historian . Oval Office 's other the Oval Office address was Tuesday .
Obama to give Oval Office address on end of combat mission in Obama . Presidents do n't give speeches from Oval Office casually , says historian . Oval Office 's other the Oval Office address was Tuesday .