Republicans consider unraveling a key part of Obamacare in Trump agenda bill

Top Republicans are considering rolling back a major piece of the Affordable Care Act in their massive bill for President Donald Trump's agenda, exploring savings by slashing how much money the federal government spends to cover the 2010 law's expansion of Medicaid.

Rep. Brett Guthrie, R-Ky., the chair of the House Energy and Commerce Committee, made the case for it Monday as Congress returned from a two-week recess, saying Medicaid spending is growing at an unsustainable rate.