Complex sentence: In 2012, Collins ran for Congress in the redrawn 9th congressional district, being vacated by Tom Graves, who ran in the newly created 14th district, where his home was located.
Split into simpler sentences: In 2012, Collins ran for Congress in the redrawn 9th congressional district. The district's incumbent, Tom Graves, opted to run in the newly created 14th district, where his home was located.