Question: Who served as junior minister being known for his colorful ties and waistcoasts under the oldest living Prime Minister of the United Kingdom? 
Sentence (from "John Major"): He served as Foreign Secretary and then Chancellor of the Exchequer in the Thatcher Government from 1989 to 1990, and was the Member of Parliament (MP) for Huntingdon from 1979 until he retired in 2001.
Relevant evidence: No