Question: Former New Mexico Governor Gary Johnson and former Massachusetts Governor Bill Weld were the mominees for Libertarian Party presidential primaries, 2016; When was the last time a presidential ticket consisted of two state governors? 
Sentence (from "Bill Weld"): William Floyd Weld (born July 31, 1945) is an American attorney, businessman, and politician who was the 68th Governor of Massachusetts from 1991 to 1997.
Relevant evidence: No