Retail investors have been increasingly following the trading activity of members of Congress, with some disclosures sparking interest in unfollowed stocks or companies that could benefit from potential government contracts. A member of Congress may not have caused red flags with his latest purchase of blue-chip, dividend-paying stock, but investors may want to take note.Congressman Buys Dow Jones Industrial Average StocksCongressman Lloyd Doggett (D-Texas) recently disclosed several new stock purchases, as ...