The House Republican tax bill calls for a bigger child tax credit. If enacted, here's who could benefit from the changes, according to policy experts.

A House Republican is objecting to an expansion of tax credits for low-income housing included in major fiscal overhaul the party had hoped to advance this week, illustrating the difficulties facing leadership as they try to keep all members of the party in line on the legislation.

House Republicans are eyeing a vote on the final package before Memorial Day, even as they have yet to reach consensus on several key issues.