The Senate Finance Committee will hold a second hearing on the issue of the “carried interest” by hedge fund managers, interest that is a percentage of the fund’s earnings (usually 15 to 25 percent, once specified benchmarks are met) and is treated as capital gains under current tax rules. Senate Finance Committee members on both sides of the aisle were skeptical of proposals to raise taxes on the managers of hedge funds and other investment partnerships at the committee’s first hearing on the issue on July 11.