In a Facebook posting, Obama said Republican replacement health care plans "rushed through" the GOP-run House and Senate "would raise costs, reduce coverage, roll back protections, and ruin Medicaid as we know it".
The leader of the minority Senate Democrats, Senator Charles Schumer, said Sunday that Republicans have "at best a 50-50 chance" of approving their Senate proposal.
"I think they have, at best, a 50-50 chance of passing this bill", Senate Democratic leader Chuck Schumer of NY said on ABC.
Conway made clear that Americans now on Medicaid, even through the Obamacare expansion, are "grandfathered in". He said along with support from President Donald Trump, "I think we're going to get this thing done, put it in conference and hopefully by the August recess really have Obamacare repealed and replaced".
"Like many other senators, I had hoped that this was where things were headed during the last several weeks as the Republican bill was discussed".
The Senate Republican plan would scuttle much of former US President Barack Obama's health law. Trump earlier attacked Democrats for their "slam" on the healthcare proposal.
"We've been disappointed that movement's not been more dramatic toward a full repeal or a broader rollback of this onerous law Obamacare", said Tim Phillips, who heads Americans for Prosperity, the largest of the Koch network's advocacy groups.More news: Exit polls: Large majority for Macron in French parliament
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McConnell has said he's willing to make changes to win support, and in the week ahead, plenty of backroom bargaining is expected.
Conservative Senator Rand Paul says he's opposing the Senate bill because it "is not anywhere close to repeal" of the Affordable Care Act. That's more than enough to torpedo the measure developed in private by Senate Majority Leader Mitch McConnell, R-Ky., and deliver a bitter defeat for the president.
"It's going to be very hard to get me to a yes", he said, noting that conservative Republican senators would likely be reluctant to add spending back to the measure. "We have ideas. You have ideas", said Mr. Schumer, New York Democrat.
But some GOP senators representing states that rapidly expanded Medicaid health care coverage have said the time frame is too short to adjust budgets. The [Republican plan] would try to slim down the federal share of that spending, by limiting how much the federal government would pay for each person enrolled in the program.
The health care industry and activists are putting outside pressure on Senate Republicans eager to complete a seven-year-long mission to repeal Obamacare. Activists and health organizations have argued that the bill's sweeping cuts to Medicaid would be life-threatening to many Americans.
"They fight each other", the United States leader continued. Later in the interview, Cassidy - a physician - seemed to indicate he'd like to see Medicaid turned into block grants for the states, a position supported by many Republicans and denounced by Democrats and some Republican governors.
Imagine you are negotiating with two creditors who say you owe them $1,000and you insist you owe nothing. They want it to pass next week. Considerably more generous than the house. "We could well be in all night a couple of nights working through what will be an open amendment process and I think that at least is good". Think of it: Their theme is 'resist.' Their theme should be, 'Let's get together.