Complex sentence: Barry Loudermilk is an American politician from the state of Georgia, and the Republican U.S. Congressman from--which covers part of Atlanta's northern suburbs--winning Phil Gingrey's Republican seat in a runoff July 22,2014 when he defeated Bob Barr.
Split into simpler sentences: Barry Loudermilk is an American politician from the state of Georgia. He became the presumptive next U.S. Congressman from--which covers part of Atlanta's northern suburbs-after winning the Republican nomination for the seat in a runoff on July 22,2014 over Bob Barr.