Simplify the following text for a Grade 9 native English-speaking person.
Original: She currently serves as minister-president of the state of Thuringia since 2009 , and as chairwoman of the CDU state party in Thuringia .
Simplified: In 2009 the CDU lost their absolute majority in the state election in Thuringia . The Minister-President of Thuringia , Dieter Althaus , resigned .