RICHMOND, Va. (AP) — Republicans have held on to a Senate seat in the Richmond area as Sen. Siobhan Dunnavant defeated Democratic challenger Del. Debra Rodman in a race dominated by attack ads over gun control and abortion. Dunnavant, an OB-GYN, blasted Rodman for co-sponsoring a bill that would have loosened rules for a legal, third-trimester abortion by reducing the number of doctors required to find that the procedure was necessary for the life or health of the mother.