Showed the world that we can change a powerful Leader who has violated a trust, in a non-violent and constitutional way, a judicious way. . No need of a "coup" or force of arms. A lot of countries were amazed and inspired by that.
Wiretapping became illegal. You can not record someone unless they know they know they are being taped, otherwise, it is not allowed in a court of law. (if you leave a msg.on an answering machine, cell phone, etc. you KNOW you are being recorded.)