The Republican-backed tax and spending bill would add trillions of dollars to the federal deficit and negatively affect the poorest of Americans, experts say.

Reps. Jefferson Shreve and Erin Houchin, both Republicans representing parts of Bartholomew County, joined their party in backing a multitrillion-dollar tax breaks package that the nonpartisan Congressional Budget Office said would add to the deficit and result in resources dropping for the lowest-income households,