The Santa Fe New Mexico has this story about the expected announcement from Gary Johnson that he will seek the Libertarian Party presidential nomination. That announcement is likely to come while Johnson is a guest on Cavuto Coast to Coast, which airs January 6 at noon eastern time and runs for two hours. The show is on Fox Business Network.
to the best of my knowledge this is the first a LP nominee made in two in a row
Harry Browne was the nominee in 1996 and 2000.
It’s official now-
http://www.independentpoliticalreport.com/2016/01/video-gary-johnson-announces-2016-libertarian-campaign-for-president/