While members of Congress are barred from using nonpublic information to personally profit off the stock market, it is legal for them to buy and hold individual stocks generally. But some lawmakers want that to change.

Among them is Representative Alexandria-Ocasio Cortez (D-N.Y.), who earlier this week reaffirmed her support for banning the practice during an Instagram Q&A, saying she doesn't personally hold individual stocks, cryptocurrencies or other digital assets.