Officially titled the "One Big, Beautiful Bill Act," this megabill fulfills a laundry list of President Donald Trump's campaign promises from taxes to border security. As House Republicans continue to negotiate the final details of the legislation,

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.

The greatest benefits would go to high-income households, while low-income families would see a much more modest boost, analyses show.