Question:
Which political party did Janez Drnovšek belong to in Jan, 2000?

Context:
 Janez Drnovšek is a member of the Liberal Democracy of Slovenia from Jan, 1990 to Jan, 2006. 
 Janez Drnovšek is a member of the League of Communists of Slovenia from Jan, 1986 to Jan, 1990. 
 Janez Drnovšek is a member of the Movement for Justice and Development from Jan, 2006 to Dec, 2022.

Answer:
Liberal Democracy of Slovenia