"This bill...is simply not the answer", Heller said.
Paul also said it was not clear whether the four senators would stay united as talks continue.
Under Obamacare, the federal government had guaranteed that its funding for adults newly eligible for Medicaid because of the Affordable Care Act would fall to no lower than 90 percent of their costs.
"This is not a huge surprise", said Young, whose research and teaching interests focus on health law and healthcare management.
Small business owner Molly Connor is one of 70,000 Hoosiers who may lose her insurance on Indiana's exchange.
"We don't have enough time, both members and the public, to completely evaluate this bill, see the scoring, see all the debate within the public realm".
House Minority Leader Nancy Pelosi, D-Calif., was urgingDemocrats to poststories on social media on constituents whose health care coverage would be threatened. The story examined the claim that more Americans will die on the Republican health care plan than the one that is now in place.
Man who shot congressman was living in van, called a loner
Hodgkinson owned a home inspection business, which he dissolved on January 10, according to Secretary of State corporate records. Court records show that Hodgkinson's legal trouble started in the 1990s with arrests for resisting police and drunken driving.
Heller, meanwhile, was skeptical Friday that Senate leadership was going to be able to provide the concessions he would need to support the bill.
Ernst declined to comment on any other provisions during a news conference at the Iowa Capitol, saying, "We have 142 pages to go through".
Nevada senator Dean Heller has become the fifth Republican to come out in opposition to the current draft version of the Senate healthcare bill. Mitch McConnell, the majority leader, will put the bill up for vote in the Senate next Thursday.
Rand Paul, who rejected the plan along with fellow Senators Ted Cruz, Mike Lee and Ron Johnson, said fundamental problems remained that would leave taxpayers subsidizing health insurance companies.
The Senate's plan, like one passed by the House of Representatives, rolls back numerous provisions of Obamacare, including taking deep cuts from Medicaid program.