Republican lawmaker Kevin Brady introduced an amendment that would alter a long-standing tax provision called carried interest — and could raise taxes on Wall Street managers that keep holdings for less than three years. Brady said the change would prevent hedge-fund managers from taking advantage of the tax benefit, but they aren't the Wall Streeters using it. Currently, carried interest allows investment managers to have capital gains taxed at a lower rate than normal income tax if they hold the holding for at least one year. It's a big benefit for private-equity funds and other long-term investors.