Besides Hawley and Collins, other GOP senators including Lisa Murkowski of Alaska, Jerry Moran of Kansas and Jim Justice of West Virginia have also drawn public red lines over health care — and they have some rhetorical backing from President Donald Trump, who has urged congressional Republicans to spare the program as much as possible.

GOP leaders hope to have the sweeping bill to President Trump's desk by July 4, but some Senate Republicans are speaking out about what the bill would mean for the debt and Medicaid.