It's election time and Karl Rove, one of the most famous political strategists in U.S. history was doing it before he finished college. 

Video is valuable for research and history

ProVergent Media found a CBS news story aired 40 years ago with Karl Rove active in President Nixon’s re-election campaign.

This story aired on Jan. 18, 1972. His appearance is at the 4:07 mark. You’ll also enjoy what computers looked like then.

Rove in the video showed he was into target demographics before it became an industry we know today.