Complex sentence: Johnson was defeated in his bid for reelection in 1994, losing to Republican Charlie Norwood by a shocking 31-point margin--the largest margin of defeat for a Democratic incumbent during the gigantic Republican landslide of that year.
Split into simpler sentences: Johnson was defeated in his bid for reelection in 1994, losing to Republican Charlie Norwood. Johnson lost by 31 points--the largest margin of defeat for a Democratic incumbent during the gigantic Republican landslide of that year.