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? 
Libertarian Party presidential primaries, 2016:  The delegates nominated former New Mexico Governor Gary Johnson and former Massachusetts Governor Bill Weld. Bill Weld:  Johnson and Weld were together the first presidential ticket since 1948 to consist of two state governors.
1948