Elizabeth Colbert-Busch, sister of comedian Stephen Colbert, will run for Congress in South Carolina, St. Andrews Patch confirmed on Friday.Colbert-Busch's entry into the race could make for interesting programming on her younger brother's show. Unlike the character Colbert plays on TV, Colbert-Busch is a Democrat, and she'll be seeking to turn a long-red First Congressional District -- previously represented by now-GOP Sen.