docs: def import_legislators(src):
      """
      Read the legislators from the csv files into a single Dataframe. Intended
      for importing new data.
      """
      logger.info("Importing Legislators From: {0}".format(src))
      current = pd.read_csv("{0}/{1}/legislators-current.csv".format(
          src, LEGISLATOR_DIR))
      historic = pd.read_csv("{0}/{1}/legislators-historic.csv".format(
          src, LEGISLATOR_DIR))
      legislators = current.append(historic)
  
      return legislators