The race for an open House seat is getting smaller. State Sen. Slade Blackwell (R-Mountain Brook) says he will seek reelection to the Legislature. He had been considering a bid for the seat of retiring Congressman Spencer Bachus (R-Vestavia). So far, only one candidate is officially in the race, Republican Chad Mathis, a doctor from Indian Springs. Other possible candidates include state Sen. Scott Beason (R-Gardendale), who ran in 2012.