Question: Among 'Fire From the Heartland' documentary stars who is an American politician and represented Minnesota's 6th congressional district  from 2007 to 2015?
Sentence (from "Frank Lucas (Oklahoma politician)"): Lucas is the U.S. Representative for Oklahoma 's 3 congressional district , serving since 2003, having previously represented the 6th district, from 1994 to 2003.
Relevant evidence: No