Simplify the following text for a Grade 12 native English-speaking person.
Original: In November 2003 , Livingstone was named ` Politician of the Year ' by the Political Studies Association , which cited his implementation of what the association called a ` bold and imaginative ' congestion charge scheme .
Simplified: In November 2003 , Livingstone was named ` Politician of the Year ' by the Political Studies Association , which said his scheme was ` bold and imaginative ' .