My favorite old AI named Tik-Tok - https://en.wikipedia.org/wiki/Tik-Tok_(novel)

>Tik-Tok finds that he can do as he pleases, and he secretly commits various hideous crimes for his amusement. After manipulating both robots and humans to cause chaos and bloodshed, Tik-Tok becomes wealthy (partly through health care privatization) and is finally elected Vice President of the United States.